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Finding the Fourth Proportional to 662.15, 913.78 and 367.41

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Solution

The fourth proportional to 662.15, 913.78 and 367.41 is: 507.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    662.15 : 913.78 = 367.41 : x
  2. Step 2: Convert to fraction form
    662.15/913.78 = 367.41/x
  3. Step 3: Cross multiply
    662.15x = 913.78 × 367.41
  4. Step 4: Simplify right side
    662.15x = 335,731.91
  5. Step 5: Solve for x
    x = 335,731.91/662.15
  6. Step 6: Final answer
    x = 507.03

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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.