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Finding the Third Proportional to 142,360.03 and 309,631.78

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Solution

The third proportional to 142,360.03 and 309,631.78 is: 673,446.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,360.03 : 309,631.78 = 309,631.78 : x
  2. Step 2: Convert to fraction form
    142,360.03/309,631.78 = 309,631.78/x
  3. Step 3: Cross multiply
    142,360.03x = 309,631.78 × 309,631.78
  4. Step 4: Simplify right side
    142,360.03x = 95,871,839,960.05
  5. Step 5: Solve for x
    x = 95,871,839,960.05/142,360.03
  6. Step 6: Final answer
    x = 673,446.33

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.