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Finding the Fourth Proportional to 263.10, 360.36 and 248.15

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Solution

The fourth proportional to 263.10, 360.36 and 248.15 is: 339.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    263.10 : 360.36 = 248.15 : x
  2. Step 2: Convert to fraction form
    263.10/360.36 = 248.15/x
  3. Step 3: Cross multiply
    263.10x = 360.36 × 248.15
  4. Step 4: Simplify right side
    263.10x = 89,421.53
  5. Step 5: Solve for x
    x = 89,421.53/263.10
  6. Step 6: Final answer
    x = 339.88

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.