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Finding the Third Proportional to 66,562 and 144,787

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Solution

The third proportional to 66,562 and 144,787 is: 314,943.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,562 : 144,787 = 144,787 : x
  2. Step 2: Convert to fraction form
    66,562/144,787 = 144,787/x
  3. Step 3: Cross multiply
    66,562x = 144,787 × 144,787
  4. Step 4: Simplify right side
    66,562x = 20,963,275,369
  5. Step 5: Solve for x
    x = 20,963,275,369/66,562
  6. Step 6: Final answer
    x = 314,943.59

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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.