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Finding the Fourth Proportional to 221,681.60, 332,565.60 and 88,539.20

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Solution

The fourth proportional to 221,681.60, 332,565.60 and 88,539.20 is: 132,826.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,681.60 : 332,565.60 = 88,539.20 : x
  2. Step 2: Convert to fraction form
    221,681.60/332,565.60 = 88,539.20/x
  3. Step 3: Cross multiply
    221,681.60x = 332,565.60 × 88,539.20
  4. Step 4: Simplify right side
    221,681.60x = 29,445,092,171.52
  5. Step 5: Solve for x
    x = 29,445,092,171.52/221,681.60
  6. Step 6: Final answer
    x = 132,826.05

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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.