Home / 386,943.20-534,061.20-243,607.04

Finding the Fourth Proportional to 386,943.20, 534,061.20 and 243,607.04

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Solution

The fourth proportional to 386,943.20, 534,061.20 and 243,607.04 is: 336,227.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,943.20 : 534,061.20 = 243,607.04 : x
  2. Step 2: Convert to fraction form
    386,943.20/534,061.20 = 243,607.04/x
  3. Step 3: Cross multiply
    386,943.20x = 534,061.20 × 243,607.04
  4. Step 4: Simplify right side
    386,943.20x = 130,101,068,110.85
  5. Step 5: Solve for x
    x = 130,101,068,110.85/386,943.20
  6. Step 6: Final answer
    x = 336,227.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.