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Finding the Third Proportional to 176,136 and 272,844

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Solution

The third proportional to 176,136 and 272,844 is: 422,649.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,136 : 272,844 = 272,844 : x
  2. Step 2: Convert to fraction form
    176,136/272,844 = 272,844/x
  3. Step 3: Cross multiply
    176,136x = 272,844 × 272,844
  4. Step 4: Simplify right side
    176,136x = 74,443,848,336
  5. Step 5: Solve for x
    x = 74,443,848,336/176,136
  6. Step 6: Final answer
    x = 422,649.82

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.