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Finding the Third Proportional to 70,983 and 155,247.75

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Solution

The third proportional to 70,983 and 155,247.75 is: 339,544.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,983 : 155,247.75 = 155,247.75 : x
  2. Step 2: Convert to fraction form
    70,983/155,247.75 = 155,247.75/x
  3. Step 3: Cross multiply
    70,983x = 155,247.75 × 155,247.75
  4. Step 4: Simplify right side
    70,983x = 24,101,863,880.06
  5. Step 5: Solve for x
    x = 24,101,863,880.06/70,983
  6. Step 6: Final answer
    x = 339,544.17

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.