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Finding the Third Proportional to 271,951 and 391,690.50

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Solution

The third proportional to 271,951 and 391,690.50 is: 564,151.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,951 : 391,690.50 = 391,690.50 : x
  2. Step 2: Convert to fraction form
    271,951/391,690.50 = 391,690.50/x
  3. Step 3: Cross multiply
    271,951x = 391,690.50 × 391,690.50
  4. Step 4: Simplify right side
    271,951x = 153,421,447,790.25
  5. Step 5: Solve for x
    x = 153,421,447,790.25/271,951
  6. Step 6: Final answer
    x = 564,151.07

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.