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Finding the Fourth Proportional to 182,008.80, 273,013.20 and 128,864.70

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Solution

The fourth proportional to 182,008.80, 273,013.20 and 128,864.70 is: 193,297.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    182,008.80 : 273,013.20 = 128,864.70 : x
  2. Step 2: Convert to fraction form
    182,008.80/273,013.20 = 128,864.70/x
  3. Step 3: Cross multiply
    182,008.80x = 273,013.20 × 128,864.70
  4. Step 4: Simplify right side
    182,008.80x = 35,181,764,114.04
  5. Step 5: Solve for x
    x = 35,181,764,114.04/182,008.80
  6. Step 6: Final answer
    x = 193,297.05

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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.