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Finding the Fourth Proportional to 461.19, 636.45 and 264.70

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Solution

The fourth proportional to 461.19, 636.45 and 264.70 is: 365.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    461.19 : 636.45 = 264.70 : x
  2. Step 2: Convert to fraction form
    461.19/636.45 = 264.70/x
  3. Step 3: Cross multiply
    461.19x = 636.45 × 264.70
  4. Step 4: Simplify right side
    461.19x = 168,468.32
  5. Step 5: Solve for x
    x = 168,468.32/461.19
  6. Step 6: Final answer
    x = 365.29

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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.