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Finding the Fourth Proportional to 662.38, 914.00 and 367.61

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Solution

The fourth proportional to 662.38, 914.00 and 367.61 is: 507.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    662.38 : 914.00 = 367.61 : x
  2. Step 2: Convert to fraction form
    662.38/914.00 = 367.61/x
  3. Step 3: Cross multiply
    662.38x = 914.00 × 367.61
  4. Step 4: Simplify right side
    662.38x = 335,989.13
  5. Step 5: Solve for x
    x = 335,989.13/662.38
  6. Step 6: Final answer
    x = 507.25

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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.