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Finding the Fourth Proportional to 221,678.60, 332,517.90 and 133,032.20

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Solution

The fourth proportional to 221,678.60, 332,517.90 and 133,032.20 is: 199,548.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,678.60 : 332,517.90 = 133,032.20 : x
  2. Step 2: Convert to fraction form
    221,678.60/332,517.90 = 133,032.20/x
  3. Step 3: Cross multiply
    221,678.60x = 332,517.90 × 133,032.20
  4. Step 4: Simplify right side
    221,678.60x = 44,235,587,776.38
  5. Step 5: Solve for x
    x = 44,235,587,776.38/221,678.60
  6. Step 6: Final answer
    x = 199,548.30

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1.5x scale

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.