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Finding the Third Proportional to 66,364 and 145,850

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Solution

The third proportional to 66,364 and 145,850 is: 320,538.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,364 : 145,850 = 145,850 : x
  2. Step 2: Convert to fraction form
    66,364/145,850 = 145,850/x
  3. Step 3: Cross multiply
    66,364x = 145,850 × 145,850
  4. Step 4: Simplify right side
    66,364x = 21,272,222,500
  5. Step 5: Solve for x
    x = 21,272,222,500/66,364
  6. Step 6: Final answer
    x = 320,538.58

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.