Home / 215,739.10-297,721.34-120,251.85

Finding the Fourth Proportional to 215,739.10, 297,721.34 and 120,251.85

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Solution

The fourth proportional to 215,739.10, 297,721.34 and 120,251.85 is: 165,948.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,739.10 : 297,721.34 = 120,251.85 : x
  2. Step 2: Convert to fraction form
    215,739.10/297,721.34 = 120,251.85/x
  3. Step 3: Cross multiply
    215,739.10x = 297,721.34 × 120,251.85
  4. Step 4: Simplify right side
    215,739.10x = 35,801,541,919.48
  5. Step 5: Solve for x
    x = 35,801,541,919.48/215,739.10
  6. Step 6: Final answer
    x = 165,948.32

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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.