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Finding the Third Proportional to 304,318 and 445,209

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Solution

The third proportional to 304,318 and 445,209 is: 651,328.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,318 : 445,209 = 445,209 : x
  2. Step 2: Convert to fraction form
    304,318/445,209 = 445,209/x
  3. Step 3: Cross multiply
    304,318x = 445,209 × 445,209
  4. Step 4: Simplify right side
    304,318x = 198,211,053,681
  5. Step 5: Solve for x
    x = 198,211,053,681/304,318
  6. Step 6: Final answer
    x = 651,328.72

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.