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Finding the Fourth Proportional to 242.82, 362.60 and 190.88

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Solution

The fourth proportional to 242.82, 362.60 and 190.88 is: 285.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    242.82 : 362.60 = 190.88 : x
  2. Step 2: Convert to fraction form
    242.82/362.60 = 190.88/x
  3. Step 3: Cross multiply
    242.82x = 362.60 × 190.88
  4. Step 4: Simplify right side
    242.82x = 69,213.47
  5. Step 5: Solve for x
    x = 69,213.47/242.82
  6. Step 6: Final answer
    x = 285.04

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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.