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Finding the Third Proportional to 117,290 and 276,605

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Solution

The third proportional to 117,290 and 276,605 is: 652,317.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,290 : 276,605 = 276,605 : x
  2. Step 2: Convert to fraction form
    117,290/276,605 = 276,605/x
  3. Step 3: Cross multiply
    117,290x = 276,605 × 276,605
  4. Step 4: Simplify right side
    117,290x = 76,510,326,025
  5. Step 5: Solve for x
    x = 76,510,326,025/117,290
  6. Step 6: Final answer
    x = 652,317.55

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.