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Finding the Third Proportional to 99,146 and 216,153

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Solution

The third proportional to 99,146 and 216,153 is: 471,245.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,146 : 216,153 = 216,153 : x
  2. Step 2: Convert to fraction form
    99,146/216,153 = 216,153/x
  3. Step 3: Cross multiply
    99,146x = 216,153 × 216,153
  4. Step 4: Simplify right side
    99,146x = 46,722,119,409
  5. Step 5: Solve for x
    x = 46,722,119,409/99,146
  6. Step 6: Final answer
    x = 471,245.63

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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.