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Finding the Fourth Proportional to 341.56, 512.34 and 136.12

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Solution

The fourth proportional to 341.56, 512.34 and 136.12 is: 204.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    341.56 : 512.34 = 136.12 : x
  2. Step 2: Convert to fraction form
    341.56/512.34 = 136.12/x
  3. Step 3: Cross multiply
    341.56x = 512.34 × 136.12
  4. Step 4: Simplify right side
    341.56x = 69,739.72
  5. Step 5: Solve for x
    x = 69,739.72/341.56
  6. Step 6: Final answer
    x = 204.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.