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Finding the Fourth Proportional to 271,750.60, 407,625.90 and 84,761.80

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Solution

The fourth proportional to 271,750.60, 407,625.90 and 84,761.80 is: 127,142.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,750.60 : 407,625.90 = 84,761.80 : x
  2. Step 2: Convert to fraction form
    271,750.60/407,625.90 = 84,761.80/x
  3. Step 3: Cross multiply
    271,750.60x = 407,625.90 × 84,761.80
  4. Step 4: Simplify right side
    271,750.60x = 34,551,105,010.62
  5. Step 5: Solve for x
    x = 34,551,105,010.62/271,750.60
  6. Step 6: Final answer
    x = 127,142.70

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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.