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Finding the Fourth Proportional to 247.08, 341.01 and 157.38

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Solution

The fourth proportional to 247.08, 341.01 and 157.38 is: 217.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    247.08 : 341.01 = 157.38 : x
  2. Step 2: Convert to fraction form
    247.08/341.01 = 157.38/x
  3. Step 3: Cross multiply
    247.08x = 341.01 × 157.38
  4. Step 4: Simplify right side
    247.08x = 53,668.15
  5. Step 5: Solve for x
    x = 53,668.15/247.08
  6. Step 6: Final answer
    x = 217.21

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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.