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Finding the Third Proportional to 187,130 and 402,279

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Solution

The third proportional to 187,130 and 402,279 is: 864,791.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,130 : 402,279 = 402,279 : x
  2. Step 2: Convert to fraction form
    187,130/402,279 = 402,279/x
  3. Step 3: Cross multiply
    187,130x = 402,279 × 402,279
  4. Step 4: Simplify right side
    187,130x = 161,828,393,841
  5. Step 5: Solve for x
    x = 161,828,393,841/187,130
  6. Step 6: Final answer
    x = 864,791.29

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.