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Finding the Third Proportional to 142,469 and 219,871

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Solution

The third proportional to 142,469 and 219,871 is: 339,324.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,469 : 219,871 = 219,871 : x
  2. Step 2: Convert to fraction form
    142,469/219,871 = 219,871/x
  3. Step 3: Cross multiply
    142,469x = 219,871 × 219,871
  4. Step 4: Simplify right side
    142,469x = 48,343,256,641
  5. Step 5: Solve for x
    x = 48,343,256,641/142,469
  6. Step 6: Final answer
    x = 339,324.74

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.