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Finding the Fourth Proportional to 225,841.92, 311,667.56 and 127,717.30

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Solution

The fourth proportional to 225,841.92, 311,667.56 and 127,717.30 is: 176,253.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,841.92 : 311,667.56 = 127,717.30 : x
  2. Step 2: Convert to fraction form
    225,841.92/311,667.56 = 127,717.30/x
  3. Step 3: Cross multiply
    225,841.92x = 311,667.56 × 127,717.30
  4. Step 4: Simplify right side
    225,841.92x = 39,805,339,260.79
  5. Step 5: Solve for x
    x = 39,805,339,260.79/225,841.92
  6. Step 6: Final answer
    x = 176,253.10

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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.