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Finding the Fourth Proportional to 563.22, 843.12 and 491.22

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Solution

The fourth proportional to 563.22, 843.12 and 491.22 is: 735.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    563.22 : 843.12 = 491.22 : x
  2. Step 2: Convert to fraction form
    563.22/843.12 = 491.22/x
  3. Step 3: Cross multiply
    563.22x = 843.12 × 491.22
  4. Step 4: Simplify right side
    563.22x = 414,157.41
  5. Step 5: Solve for x
    x = 414,157.41/563.22
  6. Step 6: Final answer
    x = 735.34

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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.