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Finding the Third Proportional to 179,280 and 251,289

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Solution

The third proportional to 179,280 and 251,289 is: 352,220.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,280 : 251,289 = 251,289 : x
  2. Step 2: Convert to fraction form
    179,280/251,289 = 251,289/x
  3. Step 3: Cross multiply
    179,280x = 251,289 × 251,289
  4. Step 4: Simplify right side
    179,280x = 63,146,161,521
  5. Step 5: Solve for x
    x = 63,146,161,521/179,280
  6. Step 6: Final answer
    x = 352,220.89

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.