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Finding the Third Proportional to 130,792 and 202,480

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Solution

The third proportional to 130,792 and 202,480 is: 313,460.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,792 : 202,480 = 202,480 : x
  2. Step 2: Convert to fraction form
    130,792/202,480 = 202,480/x
  3. Step 3: Cross multiply
    130,792x = 202,480 × 202,480
  4. Step 4: Simplify right side
    130,792x = 40,998,150,400
  5. Step 5: Solve for x
    x = 40,998,150,400/130,792
  6. Step 6: Final answer
    x = 313,460.69

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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.