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Finding the Fourth Proportional to 242.82, 334.89 and 169.02

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Solution

The fourth proportional to 242.82, 334.89 and 169.02 is: 233.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    242.82 : 334.89 = 169.02 : x
  2. Step 2: Convert to fraction form
    242.82/334.89 = 169.02/x
  3. Step 3: Cross multiply
    242.82x = 334.89 × 169.02
  4. Step 4: Simplify right side
    242.82x = 56,603.11
  5. Step 5: Solve for x
    x = 56,603.11/242.82
  6. Step 6: Final answer
    x = 233.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.