Home / 257,426.56-386,140.20-107,584.93

Finding the Fourth Proportional to 257,426.56, 386,140.20 and 107,584.93

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Solution

The fourth proportional to 257,426.56, 386,140.20 and 107,584.93 is: 161,377.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,426.56 : 386,140.20 = 107,584.93 : x
  2. Step 2: Convert to fraction form
    257,426.56/386,140.20 = 107,584.93/x
  3. Step 3: Cross multiply
    257,426.56x = 386,140.20 × 107,584.93
  4. Step 4: Simplify right side
    257,426.56x = 41,542,866,387.19
  5. Step 5: Solve for x
    x = 41,542,866,387.19/257,426.56
  6. Step 6: Final answer
    x = 161,377.55

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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.