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Finding the Fourth Proportional to 240,616.17, 361,578.53 and 128,375.69

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Solution

The fourth proportional to 240,616.17, 361,578.53 and 128,375.69 is: 192,912.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,616.17 : 361,578.53 = 128,375.69 : x
  2. Step 2: Convert to fraction form
    240,616.17/361,578.53 = 128,375.69/x
  3. Step 3: Cross multiply
    240,616.17x = 361,578.53 × 128,375.69
  4. Step 4: Simplify right side
    240,616.17x = 46,417,891,790.98
  5. Step 5: Solve for x
    x = 46,417,891,790.98/240,616.17
  6. Step 6: Final answer
    x = 192,912.60

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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.