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Finding the Fourth Proportional to 375.95, 518.52 and 251.57

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Solution

The fourth proportional to 375.95, 518.52 and 251.57 is: 346.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    375.95 : 518.52 = 251.57 : x
  2. Step 2: Convert to fraction form
    375.95/518.52 = 251.57/x
  3. Step 3: Cross multiply
    375.95x = 518.52 × 251.57
  4. Step 4: Simplify right side
    375.95x = 130,444.08
  5. Step 5: Solve for x
    x = 130,444.08/375.95
  6. Step 6: Final answer
    x = 346.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.