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Finding the Fourth Proportional to 221,590.28, 332,385.42 and 103,344.32

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Solution

The fourth proportional to 221,590.28, 332,385.42 and 103,344.32 is: 155,016.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,590.28 : 332,385.42 = 103,344.32 : x
  2. Step 2: Convert to fraction form
    221,590.28/332,385.42 = 103,344.32/x
  3. Step 3: Cross multiply
    221,590.28x = 332,385.42 × 103,344.32
  4. Step 4: Simplify right side
    221,590.28x = 34,350,145,207.81
  5. Step 5: Solve for x
    x = 34,350,145,207.81/221,590.28
  6. Step 6: Final answer
    x = 155,016.48

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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.