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Finding the Third Proportional to 229,861 and 356,820

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Solution

The third proportional to 229,861 and 356,820 is: 553,902.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,861 : 356,820 = 356,820 : x
  2. Step 2: Convert to fraction form
    229,861/356,820 = 356,820/x
  3. Step 3: Cross multiply
    229,861x = 356,820 × 356,820
  4. Step 4: Simplify right side
    229,861x = 127,320,512,400
  5. Step 5: Solve for x
    x = 127,320,512,400/229,861
  6. Step 6: Final answer
    x = 553,902.19

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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.