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Finding the Fourth Proportional to 341.52, 512.12 and 149.04

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Solution

The fourth proportional to 341.52, 512.12 and 149.04 is: 223.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    341.52 : 512.12 = 149.04 : x
  2. Step 2: Convert to fraction form
    341.52/512.12 = 149.04/x
  3. Step 3: Cross multiply
    341.52x = 512.12 × 149.04
  4. Step 4: Simplify right side
    341.52x = 76,326.36
  5. Step 5: Solve for x
    x = 76,326.36/341.52
  6. Step 6: Final answer
    x = 223.49

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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.