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Finding the Third Proportional to 280,035 and 425,246

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Solution

The third proportional to 280,035 and 425,246 is: 645,755.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,035 : 425,246 = 425,246 : x
  2. Step 2: Convert to fraction form
    280,035/425,246 = 425,246/x
  3. Step 3: Cross multiply
    280,035x = 425,246 × 425,246
  4. Step 4: Simplify right side
    280,035x = 180,834,160,516
  5. Step 5: Solve for x
    x = 180,834,160,516/280,035
  6. Step 6: Final answer
    x = 645,755.57

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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.