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Finding the Third Proportional to 66,984 and 144,483

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Solution

The third proportional to 66,984 and 144,483 is: 311,646.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,984 : 144,483 = 144,483 : x
  2. Step 2: Convert to fraction form
    66,984/144,483 = 144,483/x
  3. Step 3: Cross multiply
    66,984x = 144,483 × 144,483
  4. Step 4: Simplify right side
    66,984x = 20,875,337,289
  5. Step 5: Solve for x
    x = 20,875,337,289/66,984
  6. Step 6: Final answer
    x = 311,646.62

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.