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Finding the Fourth Proportional to 541.44, 812.16 and 245.28

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Solution

The fourth proportional to 541.44, 812.16 and 245.28 is: 367.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    541.44 : 812.16 = 245.28 : x
  2. Step 2: Convert to fraction form
    541.44/812.16 = 245.28/x
  3. Step 3: Cross multiply
    541.44x = 812.16 × 245.28
  4. Step 4: Simplify right side
    541.44x = 199,206.60
  5. Step 5: Solve for x
    x = 199,206.60/541.44
  6. Step 6: Final answer
    x = 367.92

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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.