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Finding the Third Proportional to 66,300 and 144,252

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Solution

The third proportional to 66,300 and 144,252 is: 313,855.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,300 : 144,252 = 144,252 : x
  2. Step 2: Convert to fraction form
    66,300/144,252 = 144,252/x
  3. Step 3: Cross multiply
    66,300x = 144,252 × 144,252
  4. Step 4: Simplify right side
    66,300x = 20,808,639,504
  5. Step 5: Solve for x
    x = 20,808,639,504/66,300
  6. Step 6: Final answer
    x = 313,855.80

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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.