Home / 245,932.38-339,393-138,506.10

Finding the Fourth Proportional to 245,932.38, 339,393 and 138,506.10

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Solution

The fourth proportional to 245,932.38, 339,393 and 138,506.10 is: 191,141.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,932.38 : 339,393 = 138,506.10 : x
  2. Step 2: Convert to fraction form
    245,932.38/339,393 = 138,506.10/x
  3. Step 3: Cross multiply
    245,932.38x = 339,393 × 138,506.10
  4. Step 4: Simplify right side
    245,932.38x = 47,008,000,797.30
  5. Step 5: Solve for x
    x = 47,008,000,797.30/245,932.38
  6. Step 6: Final answer
    x = 191,141.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.