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Finding the Third Proportional to 135,710 and 199,510

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Solution

The third proportional to 135,710 and 199,510 is: 293,303.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,710 : 199,510 = 199,510 : x
  2. Step 2: Convert to fraction form
    135,710/199,510 = 199,510/x
  3. Step 3: Cross multiply
    135,710x = 199,510 × 199,510
  4. Step 4: Simplify right side
    135,710x = 39,804,240,100
  5. Step 5: Solve for x
    x = 39,804,240,100/135,710
  6. Step 6: Final answer
    x = 293,303.66

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.