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Finding the Third Proportional to 210,252 and 317,565

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Solution

The third proportional to 210,252 and 317,565 is: 479,650.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,252 : 317,565 = 317,565 : x
  2. Step 2: Convert to fraction form
    210,252/317,565 = 317,565/x
  3. Step 3: Cross multiply
    210,252x = 317,565 × 317,565
  4. Step 4: Simplify right side
    210,252x = 100,847,529,225
  5. Step 5: Solve for x
    x = 100,847,529,225/210,252
  6. Step 6: Final answer
    x = 479,650.75

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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.