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Finding the Fourth Proportional to 625.54, 937.28 and 317.08

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Solution

The fourth proportional to 625.54, 937.28 and 317.08 is: 475.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    625.54 : 937.28 = 317.08 : x
  2. Step 2: Convert to fraction form
    625.54/937.28 = 317.08/x
  3. Step 3: Cross multiply
    625.54x = 937.28 × 317.08
  4. Step 4: Simplify right side
    625.54x = 297,192.74
  5. Step 5: Solve for x
    x = 297,192.74/625.54
  6. Step 6: Final answer
    x = 475.10

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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.