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Finding the Fourth Proportional to 256,508.76, 384,727 and 88,026.13

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Solution

The fourth proportional to 256,508.76, 384,727 and 88,026.13 is: 132,026.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,508.76 : 384,727 = 88,026.13 : x
  2. Step 2: Convert to fraction form
    256,508.76/384,727 = 88,026.13/x
  3. Step 3: Cross multiply
    256,508.76x = 384,727 × 88,026.13
  4. Step 4: Simplify right side
    256,508.76x = 33,866,028,916.51
  5. Step 5: Solve for x
    x = 33,866,028,916.51/256,508.76
  6. Step 6: Final answer
    x = 132,026.79

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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.