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Finding the Fourth Proportional to 274,951.32, 379,414.86 and 161,752.20

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Solution

The fourth proportional to 274,951.32, 379,414.86 and 161,752.20 is: 223,207.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,951.32 : 379,414.86 = 161,752.20 : x
  2. Step 2: Convert to fraction form
    274,951.32/379,414.86 = 161,752.20/x
  3. Step 3: Cross multiply
    274,951.32x = 379,414.86 × 161,752.20
  4. Step 4: Simplify right side
    274,951.32x = 61,371,188,317.69
  5. Step 5: Solve for x
    x = 61,371,188,317.69/274,951.32
  6. Step 6: Final answer
    x = 223,207.47

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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.