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Finding the Fourth Proportional to 225,042.08, 310,547.92 and 123,064.80

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Solution

The fourth proportional to 225,042.08, 310,547.92 and 123,064.80 is: 169,823.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,042.08 : 310,547.92 = 123,064.80 : x
  2. Step 2: Convert to fraction form
    225,042.08/310,547.92 = 123,064.80/x
  3. Step 3: Cross multiply
    225,042.08x = 310,547.92 × 123,064.80
  4. Step 4: Simplify right side
    225,042.08x = 38,217,517,665.22
  5. Step 5: Solve for x
    x = 38,217,517,665.22/225,042.08
  6. Step 6: Final answer
    x = 169,823.87

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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.