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Finding the Third Proportional to 187,205 and 403,934

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Solution

The third proportional to 187,205 and 403,934 is: 871,572.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,205 : 403,934 = 403,934 : x
  2. Step 2: Convert to fraction form
    187,205/403,934 = 403,934/x
  3. Step 3: Cross multiply
    187,205x = 403,934 × 403,934
  4. Step 4: Simplify right side
    187,205x = 163,162,676,356
  5. Step 5: Solve for x
    x = 163,162,676,356/187,205
  6. Step 6: Final answer
    x = 871,572.21

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.