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Finding the Third Proportional to 161,318 and 250,377

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Solution

The third proportional to 161,318 and 250,377 is: 388,602.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,318 : 250,377 = 250,377 : x
  2. Step 2: Convert to fraction form
    161,318/250,377 = 250,377/x
  3. Step 3: Cross multiply
    161,318x = 250,377 × 250,377
  4. Step 4: Simplify right side
    161,318x = 62,688,642,129
  5. Step 5: Solve for x
    x = 62,688,642,129/161,318
  6. Step 6: Final answer
    x = 388,602.90

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.