Home / 474,830.20-712,245.30-142,406.20

Finding the Fourth Proportional to 474,830.20, 712,245.30 and 142,406.20

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Solution

The fourth proportional to 474,830.20, 712,245.30 and 142,406.20 is: 213,609.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,830.20 : 712,245.30 = 142,406.20 : x
  2. Step 2: Convert to fraction form
    474,830.20/712,245.30 = 142,406.20/x
  3. Step 3: Cross multiply
    474,830.20x = 712,245.30 × 142,406.20
  4. Step 4: Simplify right side
    474,830.20x = 101,428,146,640.86
  5. Step 5: Solve for x
    x = 101,428,146,640.86/474,830.20
  6. Step 6: Final answer
    x = 213,609.30

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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.