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Finding the Fourth Proportional to 563.62, 845.52 and 255.46

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Solution

The fourth proportional to 563.62, 845.52 and 255.46 is: 383.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    563.62 : 845.52 = 255.46 : x
  2. Step 2: Convert to fraction form
    563.62/845.52 = 255.46/x
  3. Step 3: Cross multiply
    563.62x = 845.52 × 255.46
  4. Step 4: Simplify right side
    563.62x = 215,994.43
  5. Step 5: Solve for x
    x = 215,994.43/563.62
  6. Step 6: Final answer
    x = 383.23

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Double scale
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Similar ratio
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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.