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Finding the Fourth Proportional to 408.46, 609.86 and 367.51

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Solution

The fourth proportional to 408.46, 609.86 and 367.51 is: 548.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    408.46 : 609.86 = 367.51 : x
  2. Step 2: Convert to fraction form
    408.46/609.86 = 367.51/x
  3. Step 3: Cross multiply
    408.46x = 609.86 × 367.51
  4. Step 4: Simplify right side
    408.46x = 224,129.65
  5. Step 5: Solve for x
    x = 224,129.65/408.46
  6. Step 6: Final answer
    x = 548.72

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