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Finding the Fourth Proportional to 625.57, 937.51 and 317.64

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Solution

The fourth proportional to 625.57, 937.51 and 317.64 is: 476.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    625.57 : 937.51 = 317.64 : x
  2. Step 2: Convert to fraction form
    625.57/937.51 = 317.64/x
  3. Step 3: Cross multiply
    625.57x = 937.51 × 317.64
  4. Step 4: Simplify right side
    625.57x = 297,790.68
  5. Step 5: Solve for x
    x = 297,790.68/625.57
  6. Step 6: Final answer
    x = 476.03

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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.