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Finding the Fourth Proportional to 260.48, 360.32 and 245.18

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Solution

The fourth proportional to 260.48, 360.32 and 245.18 is: 339.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    260.48 : 360.32 = 245.18 : x
  2. Step 2: Convert to fraction form
    260.48/360.32 = 245.18/x
  3. Step 3: Cross multiply
    260.48x = 360.32 × 245.18
  4. Step 4: Simplify right side
    260.48x = 88,342.93
  5. Step 5: Solve for x
    x = 88,342.93/260.48
  6. Step 6: Final answer
    x = 339.15

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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.