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Finding the Third Proportional to 187,215 and 403,951.50

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Solution

The third proportional to 187,215 and 403,951.50 is: 871,601.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,215 : 403,951.50 = 403,951.50 : x
  2. Step 2: Convert to fraction form
    187,215/403,951.50 = 403,951.50/x
  3. Step 3: Cross multiply
    187,215x = 403,951.50 × 403,951.50
  4. Step 4: Simplify right side
    187,215x = 163,176,814,352.25
  5. Step 5: Solve for x
    x = 163,176,814,352.25/187,215
  6. Step 6: Final answer
    x = 871,601.18

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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.