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Finding the Fourth Proportional to 242.96, 364.14 and 174.62

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Solution

The fourth proportional to 242.96, 364.14 and 174.62 is: 261.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    242.96 : 364.14 = 174.62 : x
  2. Step 2: Convert to fraction form
    242.96/364.14 = 174.62/x
  3. Step 3: Cross multiply
    242.96x = 364.14 × 174.62
  4. Step 4: Simplify right side
    242.96x = 63,586.13
  5. Step 5: Solve for x
    x = 63,586.13/242.96
  6. Step 6: Final answer
    x = 261.71

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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.