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Finding the Fourth Proportional to 582.82, 874.28 and 308.90

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Solution

The fourth proportional to 582.82, 874.28 and 308.90 is: 463.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    582.82 : 874.28 = 308.90 : x
  2. Step 2: Convert to fraction form
    582.82/874.28 = 308.90/x
  3. Step 3: Cross multiply
    582.82x = 874.28 × 308.90
  4. Step 4: Simplify right side
    582.82x = 270,065.09
  5. Step 5: Solve for x
    x = 270,065.09/582.82
  6. Step 6: Final answer
    x = 463.38

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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.