Home / 345,589.38-518,306.31-123,973.38

Finding the Fourth Proportional to 345,589.38, 518,306.31 and 123,973.38

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Solution

The fourth proportional to 345,589.38, 518,306.31 and 123,973.38 is: 185,932.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,589.38 : 518,306.31 = 123,973.38 : x
  2. Step 2: Convert to fraction form
    345,589.38/518,306.31 = 123,973.38/x
  3. Step 3: Cross multiply
    345,589.38x = 518,306.31 × 123,973.38
  4. Step 4: Simplify right side
    345,589.38x = 64,256,185,126.03
  5. Step 5: Solve for x
    x = 64,256,185,126.03/345,589.38
  6. Step 6: Final answer
    x = 185,932.18

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1.5x scale

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.