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Finding the Third Proportional to 219,372 and 455,988

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Solution

The third proportional to 219,372 and 455,988 is: 947,819.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,372 : 455,988 = 455,988 : x
  2. Step 2: Convert to fraction form
    219,372/455,988 = 455,988/x
  3. Step 3: Cross multiply
    219,372x = 455,988 × 455,988
  4. Step 4: Simplify right side
    219,372x = 207,925,056,144
  5. Step 5: Solve for x
    x = 207,925,056,144/219,372
  6. Step 6: Final answer
    x = 947,819.49

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.