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Finding the Third Proportional to 136,678.50 and 295,821

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Solution

The third proportional to 136,678.50 and 295,821 is: 640,262.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,678.50 : 295,821 = 295,821 : x
  2. Step 2: Convert to fraction form
    136,678.50/295,821 = 295,821/x
  3. Step 3: Cross multiply
    136,678.50x = 295,821 × 295,821
  4. Step 4: Simplify right side
    136,678.50x = 87,510,064,041
  5. Step 5: Solve for x
    x = 87,510,064,041/136,678.50
  6. Step 6: Final answer
    x = 640,262.10

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.