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Finding the Third Proportional to 210,264 and 317,583

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Solution

The third proportional to 210,264 and 317,583 is: 479,677.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,264 : 317,583 = 317,583 : x
  2. Step 2: Convert to fraction form
    210,264/317,583 = 317,583/x
  3. Step 3: Cross multiply
    210,264x = 317,583 × 317,583
  4. Step 4: Simplify right side
    210,264x = 100,858,961,889
  5. Step 5: Solve for x
    x = 100,858,961,889/210,264
  6. Step 6: Final answer
    x = 479,677.75

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.