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Finding the Fourth Proportional to 650.38, 897.54 and 355.67

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Solution

The fourth proportional to 650.38, 897.54 and 355.67 is: 490.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    650.38 : 897.54 = 355.67 : x
  2. Step 2: Convert to fraction form
    650.38/897.54 = 355.67/x
  3. Step 3: Cross multiply
    650.38x = 897.54 × 355.67
  4. Step 4: Simplify right side
    650.38x = 319,228.05
  5. Step 5: Solve for x
    x = 319,228.05/650.38
  6. Step 6: Final answer
    x = 490.83

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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.