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Finding the Third Proportional to 97,405 and 145,715

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Solution

The third proportional to 97,405 and 145,715 is: 217,985.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,405 : 145,715 = 145,715 : x
  2. Step 2: Convert to fraction form
    97,405/145,715 = 145,715/x
  3. Step 3: Cross multiply
    97,405x = 145,715 × 145,715
  4. Step 4: Simplify right side
    97,405x = 21,232,861,225
  5. Step 5: Solve for x
    x = 21,232,861,225/97,405
  6. Step 6: Final answer
    x = 217,985.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.