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Finding the Fourth Proportional to 649.88, 974.96 and 376

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Solution

The fourth proportional to 649.88, 974.96 and 376 is: 564.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    649.88 : 974.96 = 376 : x
  2. Step 2: Convert to fraction form
    649.88/974.96 = 376/x
  3. Step 3: Cross multiply
    649.88x = 974.96 × 376
  4. Step 4: Simplify right side
    649.88x = 366,584.96
  5. Step 5: Solve for x
    x = 366,584.96/649.88
  6. Step 6: Final answer
    x = 564.08

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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.