Home / 215,700.27-297,660.37-120,204.51

Finding the Fourth Proportional to 215,700.27, 297,660.37 and 120,204.51

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Solution

The fourth proportional to 215,700.27, 297,660.37 and 120,204.51 is: 165,878.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,700.27 : 297,660.37 = 120,204.51 : x
  2. Step 2: Convert to fraction form
    215,700.27/297,660.37 = 120,204.51/x
  3. Step 3: Cross multiply
    215,700.27x = 297,660.37 × 120,204.51
  4. Step 4: Simplify right side
    215,700.27x = 35,780,118,922.27
  5. Step 5: Solve for x
    x = 35,780,118,922.27/215,700.27
  6. Step 6: Final answer
    x = 165,878.88

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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.