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Finding the Fourth Proportional to 247.57, 341.69 and 154.33

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Solution

The fourth proportional to 247.57, 341.69 and 154.33 is: 213.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    247.57 : 341.69 = 154.33 : x
  2. Step 2: Convert to fraction form
    247.57/341.69 = 154.33/x
  3. Step 3: Cross multiply
    247.57x = 341.69 × 154.33
  4. Step 4: Simplify right side
    247.57x = 52,731.39
  5. Step 5: Solve for x
    x = 52,731.39/247.57
  6. Step 6: Final answer
    x = 213.00

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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.