Home / 406,836.32-561,447.36-225,565.11

Finding the Fourth Proportional to 406,836.32, 561,447.36 and 225,565.11

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Solution

The fourth proportional to 406,836.32, 561,447.36 and 225,565.11 is: 311,287.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,836.32 : 561,447.36 = 225,565.11 : x
  2. Step 2: Convert to fraction form
    406,836.32/561,447.36 = 225,565.11/x
  3. Step 3: Cross multiply
    406,836.32x = 561,447.36 × 225,565.11
  4. Step 4: Simplify right side
    406,836.32x = 126,642,935,517.61
  5. Step 5: Solve for x
    x = 126,642,935,517.61/406,836.32
  6. Step 6: Final answer
    x = 311,287.20

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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.