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Finding the Third Proportional to 186,820 and 282,168

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Solution

The third proportional to 186,820 and 282,168 is: 426,179.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,820 : 282,168 = 282,168 : x
  2. Step 2: Convert to fraction form
    186,820/282,168 = 282,168/x
  3. Step 3: Cross multiply
    186,820x = 282,168 × 282,168
  4. Step 4: Simplify right side
    186,820x = 79,618,780,224
  5. Step 5: Solve for x
    x = 79,618,780,224/186,820
  6. Step 6: Final answer
    x = 426,179.10

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.