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Finding the Fourth Proportional to 331,387.60, 497,227.20 and 153,803.20

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Solution

The fourth proportional to 331,387.60, 497,227.20 and 153,803.20 is: 230,772.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,387.60 : 497,227.20 = 153,803.20 : x
  2. Step 2: Convert to fraction form
    331,387.60/497,227.20 = 153,803.20/x
  3. Step 3: Cross multiply
    331,387.60x = 497,227.20 × 153,803.20
  4. Step 4: Simplify right side
    331,387.60x = 76,475,134,487.04
  5. Step 5: Solve for x
    x = 76,475,134,487.04/331,387.60
  6. Step 6: Final answer
    x = 230,772.47

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1.5x scale

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.