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Finding the Third Proportional to 196,302 and 423,690

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Solution

The third proportional to 196,302 and 423,690 is: 914,474.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,302 : 423,690 = 423,690 : x
  2. Step 2: Convert to fraction form
    196,302/423,690 = 423,690/x
  3. Step 3: Cross multiply
    196,302x = 423,690 × 423,690
  4. Step 4: Simplify right side
    196,302x = 179,513,216,100
  5. Step 5: Solve for x
    x = 179,513,216,100/196,302
  6. Step 6: Final answer
    x = 914,474.72

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.