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Finding the Fourth Proportional to 461.64, 637.38 and 417.27

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Solution

The fourth proportional to 461.64, 637.38 and 417.27 is: 576.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    461.64 : 637.38 = 417.27 : x
  2. Step 2: Convert to fraction form
    461.64/637.38 = 417.27/x
  3. Step 3: Cross multiply
    461.64x = 637.38 × 417.27
  4. Step 4: Simplify right side
    461.64x = 265,959.55
  5. Step 5: Solve for x
    x = 265,959.55/461.64
  6. Step 6: Final answer
    x = 576.12

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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.