Home / 257,147.13-385,781.85-107,304.15

Finding the Fourth Proportional to 257,147.13, 385,781.85 and 107,304.15

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Solution

The fourth proportional to 257,147.13, 385,781.85 and 107,304.15 is: 160,981.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,147.13 : 385,781.85 = 107,304.15 : x
  2. Step 2: Convert to fraction form
    257,147.13/385,781.85 = 107,304.15/x
  3. Step 3: Cross multiply
    257,147.13x = 385,781.85 × 107,304.15
  4. Step 4: Simplify right side
    257,147.13x = 41,395,993,499.68
  5. Step 5: Solve for x
    x = 41,395,993,499.68/257,147.13
  6. Step 6: Final answer
    x = 160,981.74

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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.