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Finding the Fourth Proportional to 260.71, 388.79 and 246.34

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Solution

The fourth proportional to 260.71, 388.79 and 246.34 is: 367.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    260.71 : 388.79 = 246.34 : x
  2. Step 2: Convert to fraction form
    260.71/388.79 = 246.34/x
  3. Step 3: Cross multiply
    260.71x = 388.79 × 246.34
  4. Step 4: Simplify right side
    260.71x = 95,774.53
  5. Step 5: Solve for x
    x = 95,774.53/260.71
  6. Step 6: Final answer
    x = 367.36

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.