Home / 393,372.12-542,939.50-250,104.18

Finding the Fourth Proportional to 393,372.12, 542,939.50 and 250,104.18

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Solution

The fourth proportional to 393,372.12, 542,939.50 and 250,104.18 is: 345,198.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,372.12 : 542,939.50 = 250,104.18 : x
  2. Step 2: Convert to fraction form
    393,372.12/542,939.50 = 250,104.18/x
  3. Step 3: Cross multiply
    393,372.12x = 542,939.50 × 250,104.18
  4. Step 4: Simplify right side
    393,372.12x = 135,791,438,437.11
  5. Step 5: Solve for x
    x = 135,791,438,437.11/393,372.12
  6. Step 6: Final answer
    x = 345,198.43

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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.