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Finding the Third Proportional to 326,169 and 459,318

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Solution

The third proportional to 326,169 and 459,318 is: 646,821.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,169 : 459,318 = 459,318 : x
  2. Step 2: Convert to fraction form
    326,169/459,318 = 459,318/x
  3. Step 3: Cross multiply
    326,169x = 459,318 × 459,318
  4. Step 4: Simplify right side
    326,169x = 210,973,025,124
  5. Step 5: Solve for x
    x = 210,973,025,124/326,169
  6. Step 6: Final answer
    x = 646,821.20

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.