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Finding the Fourth Proportional to 318,517.79, 439,542.16 and 182,454.95

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Solution

The fourth proportional to 318,517.79, 439,542.16 and 182,454.95 is: 251,780.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,517.79 : 439,542.16 = 182,454.95 : x
  2. Step 2: Convert to fraction form
    318,517.79/439,542.16 = 182,454.95/x
  3. Step 3: Cross multiply
    318,517.79x = 439,542.16 × 182,454.95
  4. Step 4: Simplify right side
    318,517.79x = 80,196,642,825.69
  5. Step 5: Solve for x
    x = 80,196,642,825.69/318,517.79
  6. Step 6: Final answer
    x = 251,780.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.