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Finding the Third Proportional to 66,384.56 and 143,835.75

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Solution

The third proportional to 66,384.56 and 143,835.75 is: 311,649.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,384.56 : 143,835.75 = 143,835.75 : x
  2. Step 2: Convert to fraction form
    66,384.56/143,835.75 = 143,835.75/x
  3. Step 3: Cross multiply
    66,384.56x = 143,835.75 × 143,835.75
  4. Step 4: Simplify right side
    66,384.56x = 20,688,722,978.06
  5. Step 5: Solve for x
    x = 20,688,722,978.06/66,384.56
  6. Step 6: Final answer
    x = 311,649.61

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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.