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Finding the Fourth Proportional to 625.16, 937.38 and 278.48

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Solution

The fourth proportional to 625.16, 937.38 and 278.48 is: 417.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    625.16 : 937.38 = 278.48 : x
  2. Step 2: Convert to fraction form
    625.16/937.38 = 278.48/x
  3. Step 3: Cross multiply
    625.16x = 937.38 × 278.48
  4. Step 4: Simplify right side
    625.16x = 261,041.58
  5. Step 5: Solve for x
    x = 261,041.58/625.16
  6. Step 6: Final answer
    x = 417.56

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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.