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Finding the Fourth Proportional to 650.20, 897.29 and 355.48

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Solution

The fourth proportional to 650.20, 897.29 and 355.48 is: 490.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    650.20 : 897.29 = 355.48 : x
  2. Step 2: Convert to fraction form
    650.20/897.29 = 355.48/x
  3. Step 3: Cross multiply
    650.20x = 897.29 × 355.48
  4. Step 4: Simplify right side
    650.20x = 318,962.39
  5. Step 5: Solve for x
    x = 318,962.39/650.20
  6. Step 6: Final answer
    x = 490.56

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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.