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Finding the Third Proportional to 170,140 and 251,320

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Solution

The third proportional to 170,140 and 251,320 is: 371,233.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,140 : 251,320 = 251,320 : x
  2. Step 2: Convert to fraction form
    170,140/251,320 = 251,320/x
  3. Step 3: Cross multiply
    170,140x = 251,320 × 251,320
  4. Step 4: Simplify right side
    170,140x = 63,161,742,400
  5. Step 5: Solve for x
    x = 63,161,742,400/170,140
  6. Step 6: Final answer
    x = 371,233.94

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.