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Finding the Fourth Proportional to 248.65, 343.25 and 150.39

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Solution

The fourth proportional to 248.65, 343.25 and 150.39 is: 207.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    248.65 : 343.25 = 150.39 : x
  2. Step 2: Convert to fraction form
    248.65/343.25 = 150.39/x
  3. Step 3: Cross multiply
    248.65x = 343.25 × 150.39
  4. Step 4: Simplify right side
    248.65x = 51,621.37
  5. Step 5: Solve for x
    x = 51,621.37/248.65
  6. Step 6: Final answer
    x = 207.61

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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.