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Finding the Third Proportional to 66,564 and 145,410.75

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Solution

The third proportional to 66,564 and 145,410.75 is: 317,653.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,564 : 145,410.75 = 145,410.75 : x
  2. Step 2: Convert to fraction form
    66,564/145,410.75 = 145,410.75/x
  3. Step 3: Cross multiply
    66,564x = 145,410.75 × 145,410.75
  4. Step 4: Simplify right side
    66,564x = 21,144,286,215.56
  5. Step 5: Solve for x
    x = 21,144,286,215.56/66,564
  6. Step 6: Final answer
    x = 317,653.48

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.