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Finding the Third Proportional to 162,940 and 340,776

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Solution

The third proportional to 162,940 and 340,776 is: 712,705.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,940 : 340,776 = 340,776 : x
  2. Step 2: Convert to fraction form
    162,940/340,776 = 340,776/x
  3. Step 3: Cross multiply
    162,940x = 340,776 × 340,776
  4. Step 4: Simplify right side
    162,940x = 116,128,282,176
  5. Step 5: Solve for x
    x = 116,128,282,176/162,940
  6. Step 6: Final answer
    x = 712,705.79

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.