Home / 331,265.25-496,897.88-81,947.25

Finding the Fourth Proportional to 331,265.25, 496,897.88 and 81,947.25

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Solution

The fourth proportional to 331,265.25, 496,897.88 and 81,947.25 is: 122,920.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,265.25 : 496,897.88 = 81,947.25 : x
  2. Step 2: Convert to fraction form
    331,265.25/496,897.88 = 81,947.25/x
  3. Step 3: Cross multiply
    331,265.25x = 496,897.88 × 81,947.25
  4. Step 4: Simplify right side
    331,265.25x = 40,719,414,387.09
  5. Step 5: Solve for x
    x = 40,719,414,387.09/331,265.25
  6. Step 6: Final answer
    x = 122,920.88

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1.5x scale

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.