Home / 215,738.10-297,719.96-120,250.85

Finding the Fourth Proportional to 215,738.10, 297,719.96 and 120,250.85

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Solution

The fourth proportional to 215,738.10, 297,719.96 and 120,250.85 is: 165,946.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,738.10 : 297,719.96 = 120,250.85 : x
  2. Step 2: Convert to fraction form
    215,738.10/297,719.96 = 120,250.85/x
  3. Step 3: Cross multiply
    215,738.10x = 297,719.96 × 120,250.85
  4. Step 4: Simplify right side
    215,738.10x = 35,801,078,251.97
  5. Step 5: Solve for x
    x = 35,801,078,251.97/215,738.10
  6. Step 6: Final answer
    x = 165,946.94

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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.