Home / 305,867.20-422,082.45-169,909.90

Finding the Fourth Proportional to 305,867.20, 422,082.45 and 169,909.90

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Solution

The fourth proportional to 305,867.20, 422,082.45 and 169,909.90 is: 234,467.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,867.20 : 422,082.45 = 169,909.90 : x
  2. Step 2: Convert to fraction form
    305,867.20/422,082.45 = 169,909.90/x
  3. Step 3: Cross multiply
    305,867.20x = 422,082.45 × 169,909.90
  4. Step 4: Simplify right side
    305,867.20x = 71,715,986,871.26
  5. Step 5: Solve for x
    x = 71,715,986,871.26/305,867.20
  6. Step 6: Final answer
    x = 234,467.73

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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.