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Finding the Fourth Proportional to 562.78, 844.40 and 197.61

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Solution

The fourth proportional to 562.78, 844.40 and 197.61 is: 296.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    562.78 : 844.40 = 197.61 : x
  2. Step 2: Convert to fraction form
    562.78/844.40 = 197.61/x
  3. Step 3: Cross multiply
    562.78x = 844.40 × 197.61
  4. Step 4: Simplify right side
    562.78x = 166,861.88
  5. Step 5: Solve for x
    x = 166,861.88/562.78
  6. Step 6: Final answer
    x = 296.50

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1.5x scale

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.