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Finding the Fourth Proportional to 225,039.08, 310,543.78 and 123,061.80

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Solution

The fourth proportional to 225,039.08, 310,543.78 and 123,061.80 is: 169,819.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,039.08 : 310,543.78 = 123,061.80 : x
  2. Step 2: Convert to fraction form
    225,039.08/310,543.78 = 123,061.80/x
  3. Step 3: Cross multiply
    225,039.08x = 310,543.78 × 123,061.80
  4. Step 4: Simplify right side
    225,039.08x = 38,216,076,545.60
  5. Step 5: Solve for x
    x = 38,216,076,545.60/225,039.08
  6. Step 6: Final answer
    x = 169,819.73

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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.