Home / 453,029.20-679,284.60-137,438.80

Finding the Fourth Proportional to 453,029.20, 679,284.60 and 137,438.80

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Solution

The fourth proportional to 453,029.20, 679,284.60 and 137,438.80 is: 206,079.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,029.20 : 679,284.60 = 137,438.80 : x
  2. Step 2: Convert to fraction form
    453,029.20/679,284.60 = 137,438.80/x
  3. Step 3: Cross multiply
    453,029.20x = 679,284.60 × 137,438.80
  4. Step 4: Simplify right side
    453,029.20x = 93,360,060,282.48
  5. Step 5: Solve for x
    x = 93,360,060,282.48/453,029.20
  6. Step 6: Final answer
    x = 206,079.56

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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.