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Finding the Fourth Proportional to 563.41, 845.22 and 255.41

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Solution

The fourth proportional to 563.41, 845.22 and 255.41 is: 383.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    563.41 : 845.22 = 255.41 : x
  2. Step 2: Convert to fraction form
    563.41/845.22 = 255.41/x
  3. Step 3: Cross multiply
    563.41x = 845.22 × 255.41
  4. Step 4: Simplify right side
    563.41x = 215,877.64
  5. Step 5: Solve for x
    x = 215,877.64/563.41
  6. Step 6: Final answer
    x = 383.16

Related Problems

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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.