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Finding the Fourth Proportional to 460.23, 634.12 and 355.33

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Solution

The fourth proportional to 460.23, 634.12 and 355.33 is: 489.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    460.23 : 634.12 = 355.33 : x
  2. Step 2: Convert to fraction form
    460.23/634.12 = 355.33/x
  3. Step 3: Cross multiply
    460.23x = 634.12 × 355.33
  4. Step 4: Simplify right side
    460.23x = 225,321.86
  5. Step 5: Solve for x
    x = 225,321.86/460.23
  6. Step 6: Final answer
    x = 489.59

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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.