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Finding the Fourth Proportional to 221,989.04, 332,988.96 and 72,229.76

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Solution

The fourth proportional to 221,989.04, 332,988.96 and 72,229.76 is: 108,346.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,989.04 : 332,988.96 = 72,229.76 : x
  2. Step 2: Convert to fraction form
    221,989.04/332,988.96 = 72,229.76/x
  3. Step 3: Cross multiply
    221,989.04x = 332,988.96 × 72,229.76
  4. Step 4: Simplify right side
    221,989.04x = 24,051,712,663.45
  5. Step 5: Solve for x
    x = 24,051,712,663.45/221,989.04
  6. Step 6: Final answer
    x = 108,346.40

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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.