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Finding the Third Proportional to 280,254 and 426,861

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Solution

The third proportional to 280,254 and 426,861 is: 650,161.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,254 : 426,861 = 426,861 : x
  2. Step 2: Convert to fraction form
    280,254/426,861 = 426,861/x
  3. Step 3: Cross multiply
    280,254x = 426,861 × 426,861
  4. Step 4: Simplify right side
    280,254x = 182,210,313,321
  5. Step 5: Solve for x
    x = 182,210,313,321/280,254
  6. Step 6: Final answer
    x = 650,161.33

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.