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Finding the Fourth Proportional to 225,221.13, 310,805.13 and 123,246.61

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Solution

The fourth proportional to 225,221.13, 310,805.13 and 123,246.61 is: 170,080.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,221.13 : 310,805.13 = 123,246.61 : x
  2. Step 2: Convert to fraction form
    225,221.13/310,805.13 = 123,246.61/x
  3. Step 3: Cross multiply
    225,221.13x = 310,805.13 × 123,246.61
  4. Step 4: Simplify right side
    225,221.13x = 38,305,678,328.27
  5. Step 5: Solve for x
    x = 38,305,678,328.27/225,221.13
  6. Step 6: Final answer
    x = 170,080.30

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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.