Home / 391,456.27-586,242.15-222,563.35

Finding the Fourth Proportional to 391,456.27, 586,242.15 and 222,563.35

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Solution

The fourth proportional to 391,456.27, 586,242.15 and 222,563.35 is: 333,309.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,456.27 : 586,242.15 = 222,563.35 : x
  2. Step 2: Convert to fraction form
    391,456.27/586,242.15 = 222,563.35/x
  3. Step 3: Cross multiply
    391,456.27x = 586,242.15 × 222,563.35
  4. Step 4: Simplify right side
    391,456.27x = 130,476,016,815.20
  5. Step 5: Solve for x
    x = 130,476,016,815.20/391,456.27
  6. Step 6: Final answer
    x = 333,309.30

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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.