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Finding the Fourth Proportional to 563.47, 845.21 and 238.47

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Solution

The fourth proportional to 563.47, 845.21 and 238.47 is: 357.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    563.47 : 845.21 = 238.47 : x
  2. Step 2: Convert to fraction form
    563.47/845.21 = 238.47/x
  3. Step 3: Cross multiply
    563.47x = 845.21 × 238.47
  4. Step 4: Simplify right side
    563.47x = 201,557.23
  5. Step 5: Solve for x
    x = 201,557.23/563.47
  6. Step 6: Final answer
    x = 357.71

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Double scale
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Similar ratio
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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.