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Finding the Fourth Proportional to 215.33, 296.06 and 191.79

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Solution

The fourth proportional to 215.33, 296.06 and 191.79 is: 263.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    215.33 : 296.06 = 191.79 : x
  2. Step 2: Convert to fraction form
    215.33/296.06 = 191.79/x
  3. Step 3: Cross multiply
    215.33x = 296.06 × 191.79
  4. Step 4: Simplify right side
    215.33x = 56,780.39
  5. Step 5: Solve for x
    x = 56,780.39/215.33
  6. Step 6: Final answer
    x = 263.70

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.