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Finding the Third Proportional to 97,457 and 213,139

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Solution

The third proportional to 97,457 and 213,139 is: 466,136.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,457 : 213,139 = 213,139 : x
  2. Step 2: Convert to fraction form
    97,457/213,139 = 213,139/x
  3. Step 3: Cross multiply
    97,457x = 213,139 × 213,139
  4. Step 4: Simplify right side
    97,457x = 45,428,233,321
  5. Step 5: Solve for x
    x = 45,428,233,321/97,457
  6. Step 6: Final answer
    x = 466,136.18

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.