Home / 260,791.35-391,187.02-142,398.10

Finding the Fourth Proportional to 260,791.35, 391,187.02 and 142,398.10

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Solution

The fourth proportional to 260,791.35, 391,187.02 and 142,398.10 is: 213,597.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,791.35 : 391,187.02 = 142,398.10 : x
  2. Step 2: Convert to fraction form
    260,791.35/391,187.02 = 142,398.10/x
  3. Step 3: Cross multiply
    260,791.35x = 391,187.02 × 142,398.10
  4. Step 4: Simplify right side
    260,791.35x = 55,704,288,792.65
  5. Step 5: Solve for x
    x = 55,704,288,792.65/260,791.35
  6. Step 6: Final answer
    x = 213,597.15

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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.