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Finding the Third Proportional to 99,740 and 213,304

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Solution

The third proportional to 99,740 and 213,304 is: 456,172.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,740 : 213,304 = 213,304 : x
  2. Step 2: Convert to fraction form
    99,740/213,304 = 213,304/x
  3. Step 3: Cross multiply
    99,740x = 213,304 × 213,304
  4. Step 4: Simplify right side
    99,740x = 45,498,596,416
  5. Step 5: Solve for x
    x = 45,498,596,416/99,740
  6. Step 6: Final answer
    x = 456,172.01

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.