Home / 386,823.54-580,233.69-218,267.13

Finding the Fourth Proportional to 386,823.54, 580,233.69 and 218,267.13

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Solution

The fourth proportional to 386,823.54, 580,233.69 and 218,267.13 is: 327,399.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,823.54 : 580,233.69 = 218,267.13 : x
  2. Step 2: Convert to fraction form
    386,823.54/580,233.69 = 218,267.13/x
  3. Step 3: Cross multiply
    386,823.54x = 580,233.69 × 218,267.13
  4. Step 4: Simplify right side
    386,823.54x = 126,645,942,245.61
  5. Step 5: Solve for x
    x = 126,645,942,245.61/386,823.54
  6. Step 6: Final answer
    x = 327,399.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.