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Finding the Third Proportional to 66,534 and 144,153

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Solution

The third proportional to 66,534 and 144,153 is: 312,322.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,534 : 144,153 = 144,153 : x
  2. Step 2: Convert to fraction form
    66,534/144,153 = 144,153/x
  3. Step 3: Cross multiply
    66,534x = 144,153 × 144,153
  4. Step 4: Simplify right side
    66,534x = 20,780,087,409
  5. Step 5: Solve for x
    x = 20,780,087,409/66,534
  6. Step 6: Final answer
    x = 312,322.83

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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.