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Finding the Fourth Proportional to 221,403.10, 332,104.65 and 71,654.35

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Solution

The fourth proportional to 221,403.10, 332,104.65 and 71,654.35 is: 107,481.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,403.10 : 332,104.65 = 71,654.35 : x
  2. Step 2: Convert to fraction form
    221,403.10/332,104.65 = 71,654.35/x
  3. Step 3: Cross multiply
    221,403.10x = 332,104.65 × 71,654.35
  4. Step 4: Simplify right side
    221,403.10x = 23,796,742,827.73
  5. Step 5: Solve for x
    x = 23,796,742,827.73/221,403.10
  6. Step 6: Final answer
    x = 107,481.53

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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.