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Finding the Fourth Proportional to 341.55, 512.27 and 187.43

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Solution

The fourth proportional to 341.55, 512.27 and 187.43 is: 281.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    341.55 : 512.27 = 187.43 : x
  2. Step 2: Convert to fraction form
    341.55/512.27 = 187.43/x
  3. Step 3: Cross multiply
    341.55x = 512.27 × 187.43
  4. Step 4: Simplify right side
    341.55x = 96,011.27
  5. Step 5: Solve for x
    x = 96,011.27/341.55
  6. Step 6: Final answer
    x = 281.10

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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.