Home / 438,227.60-656,887.80-238,125.20

Finding the Fourth Proportional to 438,227.60, 656,887.80 and 238,125.20

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Solution

The fourth proportional to 438,227.60, 656,887.80 and 238,125.20 is: 356,941.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,227.60 : 656,887.80 = 238,125.20 : x
  2. Step 2: Convert to fraction form
    438,227.60/656,887.80 = 238,125.20/x
  3. Step 3: Cross multiply
    438,227.60x = 656,887.80 × 238,125.20
  4. Step 4: Simplify right side
    438,227.60x = 156,421,538,752.56
  5. Step 5: Solve for x
    x = 156,421,538,752.56/438,227.60
  6. Step 6: Final answer
    x = 356,941.32

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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.