Home / 215,729.97-297,708.75-120,242.73

Finding the Fourth Proportional to 215,729.97, 297,708.75 and 120,242.73

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Solution

The fourth proportional to 215,729.97, 297,708.75 and 120,242.73 is: 165,935.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,729.97 : 297,708.75 = 120,242.73 : x
  2. Step 2: Convert to fraction form
    215,729.97/297,708.75 = 120,242.73/x
  3. Step 3: Cross multiply
    215,729.97x = 297,708.75 × 120,242.73
  4. Step 4: Simplify right side
    215,729.97x = 35,797,312,844.89
  5. Step 5: Solve for x
    x = 35,797,312,844.89/215,729.97
  6. Step 6: Final answer
    x = 165,935.74

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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.