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Finding the Third Proportional to 137,148 and 207,186

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Solution

The third proportional to 137,148 and 207,186 is: 312,990.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,148 : 207,186 = 207,186 : x
  2. Step 2: Convert to fraction form
    137,148/207,186 = 207,186/x
  3. Step 3: Cross multiply
    137,148x = 207,186 × 207,186
  4. Step 4: Simplify right side
    137,148x = 42,926,038,596
  5. Step 5: Solve for x
    x = 42,926,038,596/137,148
  6. Step 6: Final answer
    x = 312,990.63

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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.