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Finding the Fourth Proportional to 225,884.38, 311,720.93 and 123,910.68

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Solution

The fourth proportional to 225,884.38, 311,720.93 and 123,910.68 is: 170,997.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,884.38 : 311,720.93 = 123,910.68 : x
  2. Step 2: Convert to fraction form
    225,884.38/311,720.93 = 123,910.68/x
  3. Step 3: Cross multiply
    225,884.38x = 311,720.93 × 123,910.68
  4. Step 4: Simplify right side
    225,884.38x = 38,625,551,591.96
  5. Step 5: Solve for x
    x = 38,625,551,591.96/225,884.38
  6. Step 6: Final answer
    x = 170,997.00

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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.