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Finding the Fourth Proportional to 461.22, 635.79 and 295.39

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Solution

The fourth proportional to 461.22, 635.79 and 295.39 is: 407.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    461.22 : 635.79 = 295.39 : x
  2. Step 2: Convert to fraction form
    461.22/635.79 = 295.39/x
  3. Step 3: Cross multiply
    461.22x = 635.79 × 295.39
  4. Step 4: Simplify right side
    461.22x = 187,806.01
  5. Step 5: Solve for x
    x = 187,806.01/461.22
  6. Step 6: Final answer
    x = 407.19

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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.