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Finding the Fourth Proportional to 683.54, 943.25 and 372.98

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Solution

The fourth proportional to 683.54, 943.25 and 372.98 is: 514.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    683.54 : 943.25 = 372.98 : x
  2. Step 2: Convert to fraction form
    683.54/943.25 = 372.98/x
  3. Step 3: Cross multiply
    683.54x = 943.25 × 372.98
  4. Step 4: Simplify right side
    683.54x = 351,813.39
  5. Step 5: Solve for x
    x = 351,813.39/683.54
  6. Step 6: Final answer
    x = 514.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.