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Finding the Third Proportional to 186,426 and 289,197

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Solution

The third proportional to 186,426 and 289,197 is: 448,622.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,426 : 289,197 = 289,197 : x
  2. Step 2: Convert to fraction form
    186,426/289,197 = 289,197/x
  3. Step 3: Cross multiply
    186,426x = 289,197 × 289,197
  4. Step 4: Simplify right side
    186,426x = 83,634,904,809
  5. Step 5: Solve for x
    x = 83,634,904,809/186,426
  6. Step 6: Final answer
    x = 448,622.54

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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.