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Finding the Fourth Proportional to 463.26, 636.69 and 450.30

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Solution

The fourth proportional to 463.26, 636.69 and 450.30 is: 618.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    463.26 : 636.69 = 450.30 : x
  2. Step 2: Convert to fraction form
    463.26/636.69 = 450.30/x
  3. Step 3: Cross multiply
    463.26x = 636.69 × 450.30
  4. Step 4: Simplify right side
    463.26x = 286,701.51
  5. Step 5: Solve for x
    x = 286,701.51/463.26
  6. Step 6: Final answer
    x = 618.88

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.