Home / 215,932.28-297,987-120,436.52

Finding the Fourth Proportional to 215,932.28, 297,987 and 120,436.52

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Solution

The fourth proportional to 215,932.28, 297,987 and 120,436.52 is: 166,202.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,932.28 : 297,987 = 120,436.52 : x
  2. Step 2: Convert to fraction form
    215,932.28/297,987 = 120,436.52/x
  3. Step 3: Cross multiply
    215,932.28x = 297,987 × 120,436.52
  4. Step 4: Simplify right side
    215,932.28x = 35,888,517,285.24
  5. Step 5: Solve for x
    x = 35,888,517,285.24/215,932.28
  6. Step 6: Final answer
    x = 166,202.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.