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Finding the Fourth Proportional to 625.02, 936.82 and 259.70

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Solution

The fourth proportional to 625.02, 936.82 and 259.70 is: 389.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    625.02 : 936.82 = 259.70 : x
  2. Step 2: Convert to fraction form
    625.02/936.82 = 259.70/x
  3. Step 3: Cross multiply
    625.02x = 936.82 × 259.70
  4. Step 4: Simplify right side
    625.02x = 243,292.15
  5. Step 5: Solve for x
    x = 243,292.15/625.02
  6. Step 6: Final answer
    x = 389.25

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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.