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Finding the Third Proportional to 149.63 and 351.19

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Solution

The third proportional to 149.63 and 351.19 is: 824.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    149.63 : 351.19 = 351.19 : x
  2. Step 2: Convert to fraction form
    149.63/351.19 = 351.19/x
  3. Step 3: Cross multiply
    149.63x = 351.19 × 351.19
  4. Step 4: Simplify right side
    149.63x = 123,332.66
  5. Step 5: Solve for x
    x = 123,332.66/149.63
  6. Step 6: Final answer
    x = 824.28

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Why These Related Problems?

These problems maintain the same ratio (2.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.