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Finding the Third Proportional to 200,370 and 299,931

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Solution

The third proportional to 200,370 and 299,931 is: 448,962.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,370 : 299,931 = 299,931 : x
  2. Step 2: Convert to fraction form
    200,370/299,931 = 299,931/x
  3. Step 3: Cross multiply
    200,370x = 299,931 × 299,931
  4. Step 4: Simplify right side
    200,370x = 89,958,604,761
  5. Step 5: Solve for x
    x = 89,958,604,761/200,370
  6. Step 6: Final answer
    x = 448,962.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.