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Finding the Fourth Proportional to 650.11, 897.15 and 355.38

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Solution

The fourth proportional to 650.11, 897.15 and 355.38 is: 490.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    650.11 : 897.15 = 355.38 : x
  2. Step 2: Convert to fraction form
    650.11/897.15 = 355.38/x
  3. Step 3: Cross multiply
    650.11x = 897.15 × 355.38
  4. Step 4: Simplify right side
    650.11x = 318,829.17
  5. Step 5: Solve for x
    x = 318,829.17/650.11
  6. Step 6: Final answer
    x = 490.42

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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.