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Finding the Third Proportional to 142,058 and 306,256

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Solution

The third proportional to 142,058 and 306,256 is: 660,242.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,058 : 306,256 = 306,256 : x
  2. Step 2: Convert to fraction form
    142,058/306,256 = 306,256/x
  3. Step 3: Cross multiply
    142,058x = 306,256 × 306,256
  4. Step 4: Simplify right side
    142,058x = 93,792,737,536
  5. Step 5: Solve for x
    x = 93,792,737,536/142,058
  6. Step 6: Final answer
    x = 660,242.56

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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.