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Finding the Fourth Proportional to 261,882.60, 361,388.28 and 160,078.56

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Solution

The fourth proportional to 261,882.60, 361,388.28 and 160,078.56 is: 220,902.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,882.60 : 361,388.28 = 160,078.56 : x
  2. Step 2: Convert to fraction form
    261,882.60/361,388.28 = 160,078.56/x
  3. Step 3: Cross multiply
    261,882.60x = 361,388.28 × 160,078.56
  4. Step 4: Simplify right side
    261,882.60x = 57,850,515,463.28
  5. Step 5: Solve for x
    x = 57,850,515,463.28/261,882.60
  6. Step 6: Final answer
    x = 220,902.48

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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.