Home / 257,149.65-385,786.07-107,306.59

Finding the Fourth Proportional to 257,149.65, 385,786.07 and 107,306.59

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Solution

The fourth proportional to 257,149.65, 385,786.07 and 107,306.59 is: 160,985.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,149.65 : 385,786.07 = 107,306.59 : x
  2. Step 2: Convert to fraction form
    257,149.65/385,786.07 = 107,306.59/x
  3. Step 3: Cross multiply
    257,149.65x = 385,786.07 × 107,306.59
  4. Step 4: Simplify right side
    257,149.65x = 41,397,387,641.20
  5. Step 5: Solve for x
    x = 41,397,387,641.20/257,149.65
  6. Step 6: Final answer
    x = 160,985.59

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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.