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Finding the Third Proportional to 303,178.64 and 660,144.66

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Solution

The third proportional to 303,178.64 and 660,144.66 is: 1,437,406.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,178.64 : 660,144.66 = 660,144.66 : x
  2. Step 2: Convert to fraction form
    303,178.64/660,144.66 = 660,144.66/x
  3. Step 3: Cross multiply
    303,178.64x = 660,144.66 × 660,144.66
  4. Step 4: Simplify right side
    303,178.64x = 435,790,967,175.43
  5. Step 5: Solve for x
    x = 435,790,967,175.43/303,178.64
  6. Step 6: Final answer
    x = 1,437,406.56

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.