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Finding the Third Proportional to 142,147 and 306,436

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Solution

The third proportional to 142,147 and 306,436 is: 660,605.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,147 : 306,436 = 306,436 : x
  2. Step 2: Convert to fraction form
    142,147/306,436 = 306,436/x
  3. Step 3: Cross multiply
    142,147x = 306,436 × 306,436
  4. Step 4: Simplify right side
    142,147x = 93,903,022,096
  5. Step 5: Solve for x
    x = 93,903,022,096/142,147
  6. Step 6: Final answer
    x = 660,605.02

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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.