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Finding the Third Proportional to 189,369 and 412,634

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Solution

The third proportional to 189,369 and 412,634 is: 899,127.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,369 : 412,634 = 412,634 : x
  2. Step 2: Convert to fraction form
    189,369/412,634 = 412,634/x
  3. Step 3: Cross multiply
    189,369x = 412,634 × 412,634
  4. Step 4: Simplify right side
    189,369x = 170,266,817,956
  5. Step 5: Solve for x
    x = 170,266,817,956/189,369
  6. Step 6: Final answer
    x = 899,127.20

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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.