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Finding the Fourth Proportional to 181,221.40, 271,572.90 and 133,463.80

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Solution

The fourth proportional to 181,221.40, 271,572.90 and 133,463.80 is: 200,004.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,221.40 : 271,572.90 = 133,463.80 : x
  2. Step 2: Convert to fraction form
    181,221.40/271,572.90 = 133,463.80/x
  3. Step 3: Cross multiply
    181,221.40x = 271,572.90 × 133,463.80
  4. Step 4: Simplify right side
    181,221.40x = 36,245,151,211.02
  5. Step 5: Solve for x
    x = 36,245,151,211.02/181,221.40
  6. Step 6: Final answer
    x = 200,004.81

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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.