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Finding the Fourth Proportional to 225,383.88, 311,050.62 and 124,781.88

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Solution

The fourth proportional to 225,383.88, 311,050.62 and 124,781.88 is: 172,210.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,383.88 : 311,050.62 = 124,781.88 : x
  2. Step 2: Convert to fraction form
    225,383.88/311,050.62 = 124,781.88/x
  3. Step 3: Cross multiply
    225,383.88x = 311,050.62 × 124,781.88
  4. Step 4: Simplify right side
    225,383.88x = 38,813,481,138.77
  5. Step 5: Solve for x
    x = 38,813,481,138.77/225,383.88
  6. Step 6: Final answer
    x = 172,210.55

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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.