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Finding the Fourth Proportional to 225,526.67, 311,227.19 and 123,549.90

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Solution

The fourth proportional to 225,526.67, 311,227.19 and 123,549.90 is: 170,499.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,526.67 : 311,227.19 = 123,549.90 : x
  2. Step 2: Convert to fraction form
    225,526.67/311,227.19 = 123,549.90/x
  3. Step 3: Cross multiply
    225,526.67x = 311,227.19 × 123,549.90
  4. Step 4: Simplify right side
    225,526.67x = 38,452,087,584.03
  5. Step 5: Solve for x
    x = 38,452,087,584.03/225,526.67
  6. Step 6: Final answer
    x = 170,499.07

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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.