Home / 257,548,902.70-386,323,354.05-155,260,288.30

Finding the Fourth Proportional to 257,548,902.70, 386,323,354.05 and 155,260,288.30

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Solution

The fourth proportional to 257,548,902.70, 386,323,354.05 and 155,260,288.30 is: 232,890,432.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,548,902.70 : 386,323,354.05 = 155,260,288.30 : x
  2. Step 2: Convert to fraction form
    257,548,902.70/386,323,354.05 = 155,260,288.30/x
  3. Step 3: Cross multiply
    257,548,902.70x = 386,323,354.05 × 155,260,288.30
  4. Step 4: Simplify right side
    257,548,902.70x = 59,980,675,326,825,976
  5. Step 5: Solve for x
    x = 59,980,675,326,825,976/257,548,902.70
  6. Step 6: Final answer
    x = 232,890,432.45

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Double scale
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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.