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Finding the Fourth Proportional to 411,040, 616,560 and 115,552

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Solution

The fourth proportional to 411,040, 616,560 and 115,552 is: 173,328

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,040 : 616,560 = 115,552 : x
  2. Step 2: Convert to fraction form
    411,040/616,560 = 115,552/x
  3. Step 3: Cross multiply
    411,040x = 616,560 × 115,552
  4. Step 4: Simplify right side
    411,040x = 71,244,741,120
  5. Step 5: Solve for x
    x = 71,244,741,120/411,040
  6. Step 6: Final answer
    x = 173,328

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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.