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Finding the Fourth Proportional to 238,862.68, 329,644.44 and 136,919.71

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Solution

The fourth proportional to 238,862.68, 329,644.44 and 136,919.71 is: 188,957.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,862.68 : 329,644.44 = 136,919.71 : x
  2. Step 2: Convert to fraction form
    238,862.68/329,644.44 = 136,919.71/x
  3. Step 3: Cross multiply
    238,862.68x = 329,644.44 × 136,919.71
  4. Step 4: Simplify right side
    238,862.68x = 45,134,821,127.91
  5. Step 5: Solve for x
    x = 45,134,821,127.91/238,862.68
  6. Step 6: Final answer
    x = 188,957.19

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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.