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Finding the Fourth Proportional to 356,351.33, 534,522.53 and 86,481.71

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Solution

The fourth proportional to 356,351.33, 534,522.53 and 86,481.71 is: 129,721.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,351.33 : 534,522.53 = 86,481.71 : x
  2. Step 2: Convert to fraction form
    356,351.33/534,522.53 = 86,481.71/x
  3. Step 3: Cross multiply
    356,351.33x = 534,522.53 × 86,481.71
  4. Step 4: Simplify right side
    356,351.33x = 46,226,419,322.91
  5. Step 5: Solve for x
    x = 46,226,419,322.91/356,351.33
  6. Step 6: Final answer
    x = 129,721.47

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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.