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Finding the Fourth Proportional to 582.13, 872.75 and 308.55

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Solution

The fourth proportional to 582.13, 872.75 and 308.55 is: 462.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    582.13 : 872.75 = 308.55 : x
  2. Step 2: Convert to fraction form
    582.13/872.75 = 308.55/x
  3. Step 3: Cross multiply
    582.13x = 872.75 × 308.55
  4. Step 4: Simplify right side
    582.13x = 269,287.78
  5. Step 5: Solve for x
    x = 269,287.78/582.13
  6. Step 6: Final answer
    x = 462.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.