Home / 343,517.10-515,278.94-130,227.65

Finding the Fourth Proportional to 343,517.10, 515,278.94 and 130,227.65

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Solution

The fourth proportional to 343,517.10, 515,278.94 and 130,227.65 is: 195,342.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,517.10 : 515,278.94 = 130,227.65 : x
  2. Step 2: Convert to fraction form
    343,517.10/515,278.94 = 130,227.65/x
  3. Step 3: Cross multiply
    343,517.10x = 515,278.94 × 130,227.65
  4. Step 4: Simplify right side
    343,517.10x = 67,103,562,223.16
  5. Step 5: Solve for x
    x = 67,103,562,223.16/343,517.10
  6. Step 6: Final answer
    x = 195,342.71

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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.