Home / 453,030.20-679,286.10-137,439.80

Finding the Fourth Proportional to 453,030.20, 679,286.10 and 137,439.80

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Solution

The fourth proportional to 453,030.20, 679,286.10 and 137,439.80 is: 206,081.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,030.20 : 679,286.10 = 137,439.80 : x
  2. Step 2: Convert to fraction form
    453,030.20/679,286.10 = 137,439.80/x
  3. Step 3: Cross multiply
    453,030.20x = 679,286.10 × 137,439.80
  4. Step 4: Simplify right side
    453,030.20x = 93,360,945,726.78
  5. Step 5: Solve for x
    x = 93,360,945,726.78/453,030.20
  6. Step 6: Final answer
    x = 206,081.06

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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.