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Finding the Third Proportional to 154,518 and 325,641

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Solution

The third proportional to 154,518 and 325,641 is: 686,276.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,518 : 325,641 = 325,641 : x
  2. Step 2: Convert to fraction form
    154,518/325,641 = 325,641/x
  3. Step 3: Cross multiply
    154,518x = 325,641 × 325,641
  4. Step 4: Simplify right side
    154,518x = 106,042,060,881
  5. Step 5: Solve for x
    x = 106,042,060,881/154,518
  6. Step 6: Final answer
    x = 686,276.43

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.