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Finding the Fourth Proportional to 417.41, 576.01 and 242.79

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Solution

The fourth proportional to 417.41, 576.01 and 242.79 is: 335.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    417.41 : 576.01 = 242.79 : x
  2. Step 2: Convert to fraction form
    417.41/576.01 = 242.79/x
  3. Step 3: Cross multiply
    417.41x = 576.01 × 242.79
  4. Step 4: Simplify right side
    417.41x = 139,849.47
  5. Step 5: Solve for x
    x = 139,849.47/417.41
  6. Step 6: Final answer
    x = 335.04

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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.