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Finding the Fourth Proportional to 262.20, 360.54 and 254.10

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Solution

The fourth proportional to 262.20, 360.54 and 254.10 is: 349.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    262.20 : 360.54 = 254.10 : x
  2. Step 2: Convert to fraction form
    262.20/360.54 = 254.10/x
  3. Step 3: Cross multiply
    262.20x = 360.54 × 254.10
  4. Step 4: Simplify right side
    262.20x = 91,613.21
  5. Step 5: Solve for x
    x = 91,613.21/262.20
  6. Step 6: Final answer
    x = 349.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.