Home / 257,149.41-385,785.69-107,306.34

Finding the Fourth Proportional to 257,149.41, 385,785.69 and 107,306.34

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Solution

The fourth proportional to 257,149.41, 385,785.69 and 107,306.34 is: 160,985.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,149.41 : 385,785.69 = 107,306.34 : x
  2. Step 2: Convert to fraction form
    257,149.41/385,785.69 = 107,306.34/x
  3. Step 3: Cross multiply
    257,149.41x = 385,785.69 × 107,306.34
  4. Step 4: Simplify right side
    257,149.41x = 41,397,250,418.27
  5. Step 5: Solve for x
    x = 41,397,250,418.27/257,149.41
  6. Step 6: Final answer
    x = 160,985.20

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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.