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Finding the Fourth Proportional to 215,939.82, 323,909.73 and 110,691.66

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Solution

The fourth proportional to 215,939.82, 323,909.73 and 110,691.66 is: 166,037.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,939.82 : 323,909.73 = 110,691.66 : x
  2. Step 2: Convert to fraction form
    215,939.82/323,909.73 = 110,691.66/x
  3. Step 3: Cross multiply
    215,939.82x = 323,909.73 × 110,691.66
  4. Step 4: Simplify right side
    215,939.82x = 35,854,105,703.85
  5. Step 5: Solve for x
    x = 35,854,105,703.85/215,939.82
  6. Step 6: Final answer
    x = 166,037.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.