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Finding the Fourth Proportional to 248.72, 343.16 and 150.52

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Solution

The fourth proportional to 248.72, 343.16 and 150.52 is: 207.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    248.72 : 343.16 = 150.52 : x
  2. Step 2: Convert to fraction form
    248.72/343.16 = 150.52/x
  3. Step 3: Cross multiply
    248.72x = 343.16 × 150.52
  4. Step 4: Simplify right side
    248.72x = 51,652.44
  5. Step 5: Solve for x
    x = 51,652.44/248.72
  6. Step 6: Final answer
    x = 207.67

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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.