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Finding the Fourth Proportional to 625.32, 936.75 and 299.70

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Solution

The fourth proportional to 625.32, 936.75 and 299.70 is: 448.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    625.32 : 936.75 = 299.70 : x
  2. Step 2: Convert to fraction form
    625.32/936.75 = 299.70/x
  3. Step 3: Cross multiply
    625.32x = 936.75 × 299.70
  4. Step 4: Simplify right side
    625.32x = 280,743.98
  5. Step 5: Solve for x
    x = 280,743.98/625.32
  6. Step 6: Final answer
    x = 448.96

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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.