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Finding the Fourth Proportional to 343.37, 513.45 and 251.10

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Solution

The fourth proportional to 343.37, 513.45 and 251.10 is: 375.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    343.37 : 513.45 = 251.10 : x
  2. Step 2: Convert to fraction form
    343.37/513.45 = 251.10/x
  3. Step 3: Cross multiply
    343.37x = 513.45 × 251.10
  4. Step 4: Simplify right side
    343.37x = 128,927.30
  5. Step 5: Solve for x
    x = 128,927.30/343.37
  6. Step 6: Final answer
    x = 375.48

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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.