Home / 343,839.97-515,766.29-119,207.71

Finding the Fourth Proportional to 343,839.97, 515,766.29 and 119,207.71

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Solution

The fourth proportional to 343,839.97, 515,766.29 and 119,207.71 is: 178,813.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,839.97 : 515,766.29 = 119,207.71 : x
  2. Step 2: Convert to fraction form
    343,839.97/515,766.29 = 119,207.71/x
  3. Step 3: Cross multiply
    343,839.97x = 515,766.29 × 119,207.71
  4. Step 4: Simplify right side
    343,839.97x = 61,483,318,326.10
  5. Step 5: Solve for x
    x = 61,483,318,326.10/343,839.97
  6. Step 6: Final answer
    x = 178,813.76

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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.