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Finding the Fourth Proportional to 625.44, 937.46 and 259.98

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Solution

The fourth proportional to 625.44, 937.46 and 259.98 is: 389.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    625.44 : 937.46 = 259.98 : x
  2. Step 2: Convert to fraction form
    625.44/937.46 = 259.98/x
  3. Step 3: Cross multiply
    625.44x = 937.46 × 259.98
  4. Step 4: Simplify right side
    625.44x = 243,720.85
  5. Step 5: Solve for x
    x = 243,720.85/625.44
  6. Step 6: Final answer
    x = 389.68

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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.