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Finding the Fourth Proportional to 256,557.29, 384,704.10 and 88,032.29

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Solution

The fourth proportional to 256,557.29, 384,704.10 and 88,032.29 is: 132,003.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,557.29 : 384,704.10 = 88,032.29 : x
  2. Step 2: Convert to fraction form
    256,557.29/384,704.10 = 88,032.29/x
  3. Step 3: Cross multiply
    256,557.29x = 384,704.10 × 88,032.29
  4. Step 4: Simplify right side
    256,557.29x = 33,866,380,971.87
  5. Step 5: Solve for x
    x = 33,866,380,971.87/256,557.29
  6. Step 6: Final answer
    x = 132,003.19

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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.