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Finding the Fourth Proportional to 634.87, 951.31 and 342.37

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Solution

The fourth proportional to 634.87, 951.31 and 342.37 is: 513.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    634.87 : 951.31 = 342.37 : x
  2. Step 2: Convert to fraction form
    634.87/951.31 = 342.37/x
  3. Step 3: Cross multiply
    634.87x = 951.31 × 342.37
  4. Step 4: Simplify right side
    634.87x = 325,700.00
  5. Step 5: Solve for x
    x = 325,700.00/634.87
  6. Step 6: Final answer
    x = 513.02

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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.