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Finding the Third Proportional to 142,389 and 303,183

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Solution

The third proportional to 142,389 and 303,183 is: 645,555.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,389 : 303,183 = 303,183 : x
  2. Step 2: Convert to fraction form
    142,389/303,183 = 303,183/x
  3. Step 3: Cross multiply
    142,389x = 303,183 × 303,183
  4. Step 4: Simplify right side
    142,389x = 91,919,931,489
  5. Step 5: Solve for x
    x = 91,919,931,489/142,389
  6. Step 6: Final answer
    x = 645,555.00

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.