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Finding the Third Proportional to 149,478 and 322,554

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Solution

The third proportional to 149,478 and 322,554 is: 696,029.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,478 : 322,554 = 322,554 : x
  2. Step 2: Convert to fraction form
    149,478/322,554 = 322,554/x
  3. Step 3: Cross multiply
    149,478x = 322,554 × 322,554
  4. Step 4: Simplify right side
    149,478x = 104,041,082,916
  5. Step 5: Solve for x
    x = 104,041,082,916/149,478
  6. Step 6: Final answer
    x = 696,029.40

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.