Home / 215,731.37-297,719.48-120,238.76

Finding the Fourth Proportional to 215,731.37, 297,719.48 and 120,238.76

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Solution

The fourth proportional to 215,731.37, 297,719.48 and 120,238.76 is: 165,935.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,731.37 : 297,719.48 = 120,238.76 : x
  2. Step 2: Convert to fraction form
    215,731.37/297,719.48 = 120,238.76/x
  3. Step 3: Cross multiply
    215,731.37x = 297,719.48 × 120,238.76
  4. Step 4: Simplify right side
    215,731.37x = 35,797,422,147.94
  5. Step 5: Solve for x
    x = 35,797,422,147.94/215,731.37
  6. Step 6: Final answer
    x = 165,935.17

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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.