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Finding the Fourth Proportional to 242.71, 334.77 and 169.27

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Solution

The fourth proportional to 242.71, 334.77 and 169.27 is: 233.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    242.71 : 334.77 = 169.27 : x
  2. Step 2: Convert to fraction form
    242.71/334.77 = 169.27/x
  3. Step 3: Cross multiply
    242.71x = 334.77 × 169.27
  4. Step 4: Simplify right side
    242.71x = 56,666.52
  5. Step 5: Solve for x
    x = 56,666.52/242.71
  6. Step 6: Final answer
    x = 233.47

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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.