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Finding the Fourth Proportional to 625.17, 936.97 and 317.10

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Solution

The fourth proportional to 625.17, 936.97 and 317.10 is: 475.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    625.17 : 936.97 = 317.10 : x
  2. Step 2: Convert to fraction form
    625.17/936.97 = 317.10/x
  3. Step 3: Cross multiply
    625.17x = 936.97 × 317.10
  4. Step 4: Simplify right side
    625.17x = 297,111.60
  5. Step 5: Solve for x
    x = 297,111.60/625.17
  6. Step 6: Final answer
    x = 475.25

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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.