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Finding the Third Proportional to 154,520 and 325,646

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Solution

The third proportional to 154,520 and 325,646 is: 686,288.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,520 : 325,646 = 325,646 : x
  2. Step 2: Convert to fraction form
    154,520/325,646 = 325,646/x
  3. Step 3: Cross multiply
    154,520x = 325,646 × 325,646
  4. Step 4: Simplify right side
    154,520x = 106,045,317,316
  5. Step 5: Solve for x
    x = 106,045,317,316/154,520
  6. Step 6: Final answer
    x = 686,288.62

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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.