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Finding the Fourth Proportional to 242.65, 334.45 and 168.83

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Solution

The fourth proportional to 242.65, 334.45 and 168.83 is: 232.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    242.65 : 334.45 = 168.83 : x
  2. Step 2: Convert to fraction form
    242.65/334.45 = 168.83/x
  3. Step 3: Cross multiply
    242.65x = 334.45 × 168.83
  4. Step 4: Simplify right side
    242.65x = 56,467.34
  5. Step 5: Solve for x
    x = 56,467.34/242.65
  6. Step 6: Final answer
    x = 232.72

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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.