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Finding the Fourth Proportional to 225,192.67, 310,765.72 and 123,218.80

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Solution

The fourth proportional to 225,192.67, 310,765.72 and 123,218.80 is: 170,041.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,192.67 : 310,765.72 = 123,218.80 : x
  2. Step 2: Convert to fraction form
    225,192.67/310,765.72 = 123,218.80/x
  3. Step 3: Cross multiply
    225,192.67x = 310,765.72 × 123,218.80
  4. Step 4: Simplify right side
    225,192.67x = 38,292,179,099.54
  5. Step 5: Solve for x
    x = 38,292,179,099.54/225,192.67
  6. Step 6: Final answer
    x = 170,041.85

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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.