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Finding the Fourth Proportional to 268,537.73, 402,819.21 and 88,638.87

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Solution

The fourth proportional to 268,537.73, 402,819.21 and 88,638.87 is: 132,962.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,537.73 : 402,819.21 = 88,638.87 : x
  2. Step 2: Convert to fraction form
    268,537.73/402,819.21 = 88,638.87/x
  3. Step 3: Cross multiply
    268,537.73x = 402,819.21 × 88,638.87
  4. Step 4: Simplify right side
    268,537.73x = 35,705,439,588.69
  5. Step 5: Solve for x
    x = 35,705,439,588.69/268,537.73
  6. Step 6: Final answer
    x = 132,962.47

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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.