Home / 324,266.20-486,140.10-137,123.80

Finding the Fourth Proportional to 324,266.20, 486,140.10 and 137,123.80

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Solution

The fourth proportional to 324,266.20, 486,140.10 and 137,123.80 is: 205,576.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,266.20 : 486,140.10 = 137,123.80 : x
  2. Step 2: Convert to fraction form
    324,266.20/486,140.10 = 137,123.80/x
  3. Step 3: Cross multiply
    324,266.20x = 486,140.10 × 137,123.80
  4. Step 4: Simplify right side
    324,266.20x = 66,661,377,844.38
  5. Step 5: Solve for x
    x = 66,661,377,844.38/324,266.20
  6. Step 6: Final answer
    x = 205,576.09

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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.