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Finding the Fourth Proportional to 371.30, 552.78 and 369.50

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Solution

The fourth proportional to 371.30, 552.78 and 369.50 is: 550.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    371.30 : 552.78 = 369.50 : x
  2. Step 2: Convert to fraction form
    371.30/552.78 = 369.50/x
  3. Step 3: Cross multiply
    371.30x = 552.78 × 369.50
  4. Step 4: Simplify right side
    371.30x = 204,249.45
  5. Step 5: Solve for x
    x = 204,249.45/371.30
  6. Step 6: Final answer
    x = 550.10

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.