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Finding the Fourth Proportional to 563.16, 844.26 and 319.35

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Solution

The fourth proportional to 563.16, 844.26 and 319.35 is: 478.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    563.16 : 844.26 = 319.35 : x
  2. Step 2: Convert to fraction form
    563.16/844.26 = 319.35/x
  3. Step 3: Cross multiply
    563.16x = 844.26 × 319.35
  4. Step 4: Simplify right side
    563.16x = 269,614.43
  5. Step 5: Solve for x
    x = 269,614.43/563.16
  6. Step 6: Final answer
    x = 478.75

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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.