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Finding the Fourth Proportional to 563.25, 845.22 and 316.98

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Solution

The fourth proportional to 563.25, 845.22 and 316.98 is: 475.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    563.25 : 845.22 = 316.98 : x
  2. Step 2: Convert to fraction form
    563.25/845.22 = 316.98/x
  3. Step 3: Cross multiply
    563.25x = 845.22 × 316.98
  4. Step 4: Simplify right side
    563.25x = 267,917.24
  5. Step 5: Solve for x
    x = 267,917.24/563.25
  6. Step 6: Final answer
    x = 475.66

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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.