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Finding the Fourth Proportional to 221,550.96, 332,404.20 and 138,347.76

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Solution

The fourth proportional to 221,550.96, 332,404.20 and 138,347.76 is: 207,570.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,550.96 : 332,404.20 = 138,347.76 : x
  2. Step 2: Convert to fraction form
    221,550.96/332,404.20 = 138,347.76/x
  3. Step 3: Cross multiply
    221,550.96x = 332,404.20 × 138,347.76
  4. Step 4: Simplify right side
    221,550.96x = 45,987,376,484.59
  5. Step 5: Solve for x
    x = 45,987,376,484.59/221,550.96
  6. Step 6: Final answer
    x = 207,570.20

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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.