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Finding the Fourth Proportional to 562.96, 844.56 and 319.60

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Solution

The fourth proportional to 562.96, 844.56 and 319.60 is: 479.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    562.96 : 844.56 = 319.60 : x
  2. Step 2: Convert to fraction form
    562.96/844.56 = 319.60/x
  3. Step 3: Cross multiply
    562.96x = 844.56 × 319.60
  4. Step 4: Simplify right side
    562.96x = 269,921.38
  5. Step 5: Solve for x
    x = 269,921.38/562.96
  6. Step 6: Final answer
    x = 479.47

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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.