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Finding the Third Proportional to 148,200 and 319,732

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Solution

The third proportional to 148,200 and 319,732 is: 689,801.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,200 : 319,732 = 319,732 : x
  2. Step 2: Convert to fraction form
    148,200/319,732 = 319,732/x
  3. Step 3: Cross multiply
    148,200x = 319,732 × 319,732
  4. Step 4: Simplify right side
    148,200x = 102,228,551,824
  5. Step 5: Solve for x
    x = 102,228,551,824/148,200
  6. Step 6: Final answer
    x = 689,801.29

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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.