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Finding the Fourth Proportional to 318,558, 439,620.39 and 182,617.71

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Solution

The fourth proportional to 318,558, 439,620.39 and 182,617.71 is: 252,018.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,558 : 439,620.39 = 182,617.71 : x
  2. Step 2: Convert to fraction form
    318,558/439,620.39 = 182,617.71/x
  3. Step 3: Cross multiply
    318,558x = 439,620.39 × 182,617.71
  4. Step 4: Simplify right side
    318,558x = 80,282,468,891.11
  5. Step 5: Solve for x
    x = 80,282,468,891.11/318,558
  6. Step 6: Final answer
    x = 252,018.37

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1.5x scale

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.