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Finding the Third Proportional to 334.02 and 491.38

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Solution

The third proportional to 334.02 and 491.38 is: 722.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    334.02 : 491.38 = 491.38 : x
  2. Step 2: Convert to fraction form
    334.02/491.38 = 491.38/x
  3. Step 3: Cross multiply
    334.02x = 491.38 × 491.38
  4. Step 4: Simplify right side
    334.02x = 241,453.23
  5. Step 5: Solve for x
    x = 241,453.23/334.02
  6. Step 6: Final answer
    x = 722.87

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.