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Finding the Fourth Proportional to 343.09, 513.72 and 180.43

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Solution

The fourth proportional to 343.09, 513.72 and 180.43 is: 270.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    343.09 : 513.72 = 180.43 : x
  2. Step 2: Convert to fraction form
    343.09/513.72 = 180.43/x
  3. Step 3: Cross multiply
    343.09x = 513.72 × 180.43
  4. Step 4: Simplify right side
    343.09x = 92,690.50
  5. Step 5: Solve for x
    x = 92,690.50/343.09
  6. Step 6: Final answer
    x = 270.16

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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.