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Finding the Fourth Proportional to 238,722.40, 358,082.96 and 88,959.28

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Solution

The fourth proportional to 238,722.40, 358,082.96 and 88,959.28 is: 133,438.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,722.40 : 358,082.96 = 88,959.28 : x
  2. Step 2: Convert to fraction form
    238,722.40/358,082.96 = 88,959.28/x
  3. Step 3: Cross multiply
    238,722.40x = 358,082.96 × 88,959.28
  4. Step 4: Simplify right side
    238,722.40x = 31,854,802,301.87
  5. Step 5: Solve for x
    x = 31,854,802,301.87/238,722.40
  6. Step 6: Final answer
    x = 133,438.68

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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.