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Finding the Third Proportional to 130,809 and 202,506

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Solution

The third proportional to 130,809 and 202,506 is: 313,500.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,809 : 202,506 = 202,506 : x
  2. Step 2: Convert to fraction form
    130,809/202,506 = 202,506/x
  3. Step 3: Cross multiply
    130,809x = 202,506 × 202,506
  4. Step 4: Simplify right side
    130,809x = 41,008,680,036
  5. Step 5: Solve for x
    x = 41,008,680,036/130,809
  6. Step 6: Final answer
    x = 313,500.45

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.