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Finding the Fourth Proportional to 181,543.20, 272,314.80 and 134,887.20

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Solution

The fourth proportional to 181,543.20, 272,314.80 and 134,887.20 is: 202,330.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,543.20 : 272,314.80 = 134,887.20 : x
  2. Step 2: Convert to fraction form
    181,543.20/272,314.80 = 134,887.20/x
  3. Step 3: Cross multiply
    181,543.20x = 272,314.80 × 134,887.20
  4. Step 4: Simplify right side
    181,543.20x = 36,731,780,890.56
  5. Step 5: Solve for x
    x = 36,731,780,890.56/181,543.20
  6. Step 6: Final answer
    x = 202,330.80

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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.