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Finding the Fourth Proportional to 548.64, 822.12 and 365.37

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Solution

The fourth proportional to 548.64, 822.12 and 365.37 is: 547.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    548.64 : 822.12 = 365.37 : x
  2. Step 2: Convert to fraction form
    548.64/822.12 = 365.37/x
  3. Step 3: Cross multiply
    548.64x = 822.12 × 365.37
  4. Step 4: Simplify right side
    548.64x = 300,377.98
  5. Step 5: Solve for x
    x = 300,377.98/548.64
  6. Step 6: Final answer
    x = 547.50

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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.