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Finding the Third Proportional to 70,390 and 153,174

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Solution

The third proportional to 70,390 and 153,174 is: 333,318.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,390 : 153,174 = 153,174 : x
  2. Step 2: Convert to fraction form
    70,390/153,174 = 153,174/x
  3. Step 3: Cross multiply
    70,390x = 153,174 × 153,174
  4. Step 4: Simplify right side
    70,390x = 23,462,274,276
  5. Step 5: Solve for x
    x = 23,462,274,276/70,390
  6. Step 6: Final answer
    x = 333,318.29

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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.