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Finding the Third Proportional to 66,363 and 144,388

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Solution

The third proportional to 66,363 and 144,388 is: 314,149.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,363 : 144,388 = 144,388 : x
  2. Step 2: Convert to fraction form
    66,363/144,388 = 144,388/x
  3. Step 3: Cross multiply
    66,363x = 144,388 × 144,388
  4. Step 4: Simplify right side
    66,363x = 20,847,894,544
  5. Step 5: Solve for x
    x = 20,847,894,544/66,363
  6. Step 6: Final answer
    x = 314,149.37

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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.