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Finding the Third Proportional to 137,115 and 207,130

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Solution

The third proportional to 137,115 and 207,130 is: 312,896.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,115 : 207,130 = 207,130 : x
  2. Step 2: Convert to fraction form
    137,115/207,130 = 207,130/x
  3. Step 3: Cross multiply
    137,115x = 207,130 × 207,130
  4. Step 4: Simplify right side
    137,115x = 42,902,836,900
  5. Step 5: Solve for x
    x = 42,902,836,900/137,115
  6. Step 6: Final answer
    x = 312,896.74

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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.