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Finding the Fourth Proportional to 295,694.70, 443,542.05 and 137,939.10

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Solution

The fourth proportional to 295,694.70, 443,542.05 and 137,939.10 is: 206,908.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,694.70 : 443,542.05 = 137,939.10 : x
  2. Step 2: Convert to fraction form
    295,694.70/443,542.05 = 137,939.10/x
  3. Step 3: Cross multiply
    295,694.70x = 443,542.05 × 137,939.10
  4. Step 4: Simplify right side
    295,694.70x = 61,181,791,189.16
  5. Step 5: Solve for x
    x = 61,181,791,189.16/295,694.70
  6. Step 6: Final answer
    x = 206,908.65

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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.