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Finding the Fourth Proportional to 215,115.62, 296,859.78 and 119,620.26

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Solution

The fourth proportional to 215,115.62, 296,859.78 and 119,620.26 is: 165,076.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,115.62 : 296,859.78 = 119,620.26 : x
  2. Step 2: Convert to fraction form
    215,115.62/296,859.78 = 119,620.26/x
  3. Step 3: Cross multiply
    215,115.62x = 296,859.78 × 119,620.26
  4. Step 4: Simplify right side
    215,115.62x = 35,510,444,067.14
  5. Step 5: Solve for x
    x = 35,510,444,067.14/215,115.62
  6. Step 6: Final answer
    x = 165,076.08

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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.