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Finding the Third Proportional to 66,392.44 and 143,859.94

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Solution

The third proportional to 66,392.44 and 143,859.94 is: 311,717.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,392.44 : 143,859.94 = 143,859.94 : x
  2. Step 2: Convert to fraction form
    66,392.44/143,859.94 = 143,859.94/x
  3. Step 3: Cross multiply
    66,392.44x = 143,859.94 × 143,859.94
  4. Step 4: Simplify right side
    66,392.44x = 20,695,681,617.50
  5. Step 5: Solve for x
    x = 20,695,681,617.50/66,392.44
  6. Step 6: Final answer
    x = 311,717.45

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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.