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Finding the Fourth Proportional to 460.24, 633.96 and 355.12

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Solution

The fourth proportional to 460.24, 633.96 and 355.12 is: 489.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    460.24 : 633.96 = 355.12 : x
  2. Step 2: Convert to fraction form
    460.24/633.96 = 355.12/x
  3. Step 3: Cross multiply
    460.24x = 633.96 × 355.12
  4. Step 4: Simplify right side
    460.24x = 225,131.88
  5. Step 5: Solve for x
    x = 225,131.88/460.24
  6. Step 6: Final answer
    x = 489.16

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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.