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Finding the Fourth Proportional to 563.94, 845.81 and 255.72

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Solution

The fourth proportional to 563.94, 845.81 and 255.72 is: 383.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    563.94 : 845.81 = 255.72 : x
  2. Step 2: Convert to fraction form
    563.94/845.81 = 255.72/x
  3. Step 3: Cross multiply
    563.94x = 845.81 × 255.72
  4. Step 4: Simplify right side
    563.94x = 216,290.53
  5. Step 5: Solve for x
    x = 216,290.53/563.94
  6. Step 6: Final answer
    x = 383.53

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Double scale
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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.