Home / 310,621.20-465,701.40-132,982.80

Finding the Fourth Proportional to 310,621.20, 465,701.40 and 132,982.80

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Solution

The fourth proportional to 310,621.20, 465,701.40 and 132,982.80 is: 199,375.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,621.20 : 465,701.40 = 132,982.80 : x
  2. Step 2: Convert to fraction form
    310,621.20/465,701.40 = 132,982.80/x
  3. Step 3: Cross multiply
    310,621.20x = 465,701.40 × 132,982.80
  4. Step 4: Simplify right side
    310,621.20x = 61,930,276,135.92
  5. Step 5: Solve for x
    x = 61,930,276,135.92/310,621.20
  6. Step 6: Final answer
    x = 199,375.56

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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.