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Finding the Third Proportional to 200,454 and 427,596

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Solution

The third proportional to 200,454 and 427,596 is: 912,121.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,454 : 427,596 = 427,596 : x
  2. Step 2: Convert to fraction form
    200,454/427,596 = 427,596/x
  3. Step 3: Cross multiply
    200,454x = 427,596 × 427,596
  4. Step 4: Simplify right side
    200,454x = 182,838,339,216
  5. Step 5: Solve for x
    x = 182,838,339,216/200,454
  6. Step 6: Final answer
    x = 912,121.18

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.