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Finding the Fourth Proportional to 271,879.78, 375,109.44 and 157,116.61

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Solution

The fourth proportional to 271,879.78, 375,109.44 and 157,116.61 is: 216,772.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,879.78 : 375,109.44 = 157,116.61 : x
  2. Step 2: Convert to fraction form
    271,879.78/375,109.44 = 157,116.61/x
  3. Step 3: Cross multiply
    271,879.78x = 375,109.44 × 157,116.61
  4. Step 4: Simplify right side
    271,879.78x = 58,935,923,591.80
  5. Step 5: Solve for x
    x = 58,935,923,591.80/271,879.78
  6. Step 6: Final answer
    x = 216,772.00

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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.