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Finding the Third Proportional to 280,536 and 434,592

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Solution

The third proportional to 280,536 and 434,592 is: 673,247.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,536 : 434,592 = 434,592 : x
  2. Step 2: Convert to fraction form
    280,536/434,592 = 434,592/x
  3. Step 3: Cross multiply
    280,536x = 434,592 × 434,592
  4. Step 4: Simplify right side
    280,536x = 188,870,206,464
  5. Step 5: Solve for x
    x = 188,870,206,464/280,536
  6. Step 6: Final answer
    x = 673,247.66

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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.