Home / 231,387.20-346,389.60-137,844.80

Finding the Fourth Proportional to 231,387.20, 346,389.60 and 137,844.80

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Solution

The fourth proportional to 231,387.20, 346,389.60 and 137,844.80 is: 206,355.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,387.20 : 346,389.60 = 137,844.80 : x
  2. Step 2: Convert to fraction form
    231,387.20/346,389.60 = 137,844.80/x
  3. Step 3: Cross multiply
    231,387.20x = 346,389.60 × 137,844.80
  4. Step 4: Simplify right side
    231,387.20x = 47,748,005,134.08
  5. Step 5: Solve for x
    x = 47,748,005,134.08/231,387.20
  6. Step 6: Final answer
    x = 206,355.43

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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.