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Finding the Fourth Proportional to 215,754.60, 297,745.27 and 120,251.05

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Solution

The fourth proportional to 215,754.60, 297,745.27 and 120,251.05 is: 165,948.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,754.60 : 297,745.27 = 120,251.05 : x
  2. Step 2: Convert to fraction form
    215,754.60/297,745.27 = 120,251.05/x
  3. Step 3: Cross multiply
    215,754.60x = 297,745.27 × 120,251.05
  4. Step 4: Simplify right side
    215,754.60x = 35,804,180,305.04
  5. Step 5: Solve for x
    x = 35,804,180,305.04/215,754.60
  6. Step 6: Final answer
    x = 165,948.63

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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.