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Finding the Fourth Proportional to 460.93, 636.12 and 286.33

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Solution

The fourth proportional to 460.93, 636.12 and 286.33 is: 395.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    460.93 : 636.12 = 286.33 : x
  2. Step 2: Convert to fraction form
    460.93/636.12 = 286.33/x
  3. Step 3: Cross multiply
    460.93x = 636.12 × 286.33
  4. Step 4: Simplify right side
    460.93x = 182,140.24
  5. Step 5: Solve for x
    x = 182,140.24/460.93
  6. Step 6: Final answer
    x = 395.16

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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.