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Finding the Third Proportional to 66,610 and 144,288

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Solution

The third proportional to 66,610 and 144,288 is: 312,551.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,610 : 144,288 = 144,288 : x
  2. Step 2: Convert to fraction form
    66,610/144,288 = 144,288/x
  3. Step 3: Cross multiply
    66,610x = 144,288 × 144,288
  4. Step 4: Simplify right side
    66,610x = 20,819,026,944
  5. Step 5: Solve for x
    x = 20,819,026,944/66,610
  6. Step 6: Final answer
    x = 312,551.07

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.