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Finding the Fourth Proportional to 221,421.40, 332,132.10 and 204,314.20

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Solution

The fourth proportional to 221,421.40, 332,132.10 and 204,314.20 is: 306,471.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,421.40 : 332,132.10 = 204,314.20 : x
  2. Step 2: Convert to fraction form
    221,421.40/332,132.10 = 204,314.20/x
  3. Step 3: Cross multiply
    221,421.40x = 332,132.10 × 204,314.20
  4. Step 4: Simplify right side
    221,421.40x = 67,859,304,305.82
  5. Step 5: Solve for x
    x = 67,859,304,305.82/221,421.40
  6. Step 6: Final answer
    x = 306,471.30

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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.