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Finding the Fourth Proportional to 225.75, 337.18 and 191.12

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Solution

The fourth proportional to 225.75, 337.18 and 191.12 is: 285.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    225.75 : 337.18 = 191.12 : x
  2. Step 2: Convert to fraction form
    225.75/337.18 = 191.12/x
  3. Step 3: Cross multiply
    225.75x = 337.18 × 191.12
  4. Step 4: Simplify right side
    225.75x = 64,441.84
  5. Step 5: Solve for x
    x = 64,441.84/225.75
  6. Step 6: Final answer
    x = 285.46

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.