Home / 274,986.20-412,807.35-155,138.60

Finding the Fourth Proportional to 274,986.20, 412,807.35 and 155,138.60

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Solution

The fourth proportional to 274,986.20, 412,807.35 and 155,138.60 is: 232,892.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,986.20 : 412,807.35 = 155,138.60 : x
  2. Step 2: Convert to fraction form
    274,986.20/412,807.35 = 155,138.60/x
  3. Step 3: Cross multiply
    274,986.20x = 412,807.35 × 155,138.60
  4. Step 4: Simplify right side
    274,986.20x = 64,042,354,348.71
  5. Step 5: Solve for x
    x = 64,042,354,348.71/274,986.20
  6. Step 6: Final answer
    x = 232,892.98

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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.