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Finding the Fourth Proportional to 221,446.80, 332,170.20 and 103,348.80

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Solution

The fourth proportional to 221,446.80, 332,170.20 and 103,348.80 is: 155,023.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,446.80 : 332,170.20 = 103,348.80 : x
  2. Step 2: Convert to fraction form
    221,446.80/332,170.20 = 103,348.80/x
  3. Step 3: Cross multiply
    221,446.80x = 332,170.20 × 103,348.80
  4. Step 4: Simplify right side
    221,446.80x = 34,329,391,565.76
  5. Step 5: Solve for x
    x = 34,329,391,565.76/221,446.80
  6. Step 6: Final answer
    x = 155,023.20

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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.