Home / 257,770.18-386,499.93-115,589.71

Finding the Fourth Proportional to 257,770.18, 386,499.93 and 115,589.71

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Solution

The fourth proportional to 257,770.18, 386,499.93 and 115,589.71 is: 173,314.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,770.18 : 386,499.93 = 115,589.71 : x
  2. Step 2: Convert to fraction form
    257,770.18/386,499.93 = 115,589.71/x
  3. Step 3: Cross multiply
    257,770.18x = 386,499.93 × 115,589.71
  4. Step 4: Simplify right side
    257,770.18x = 44,675,414,823.72
  5. Step 5: Solve for x
    x = 44,675,414,823.72/257,770.18
  6. Step 6: Final answer
    x = 173,314.91

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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.