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Finding the Fourth Proportional to 499,576.80, 749,177.12 and 162,529.28

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Solution

The fourth proportional to 499,576.80, 749,177.12 and 162,529.28 is: 243,732.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,576.80 : 749,177.12 = 162,529.28 : x
  2. Step 2: Convert to fraction form
    499,576.80/749,177.12 = 162,529.28/x
  3. Step 3: Cross multiply
    499,576.80x = 749,177.12 × 162,529.28
  4. Step 4: Simplify right side
    499,576.80x = 121,763,217,906.07
  5. Step 5: Solve for x
    x = 121,763,217,906.07/499,576.80
  6. Step 6: Final answer
    x = 243,732.73

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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.