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Finding the Fourth Proportional to 548.87, 823.31 and 183.66

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Solution

The fourth proportional to 548.87, 823.31 and 183.66 is: 275.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    548.87 : 823.31 = 183.66 : x
  2. Step 2: Convert to fraction form
    548.87/823.31 = 183.66/x
  3. Step 3: Cross multiply
    548.87x = 823.31 × 183.66
  4. Step 4: Simplify right side
    548.87x = 151,208.20
  5. Step 5: Solve for x
    x = 151,208.20/548.87
  6. Step 6: Final answer
    x = 275.49

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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.