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Finding the Third Proportional to 182,430 and 272,912

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Solution

The third proportional to 182,430 and 272,912 is: 408,271.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    182,430 : 272,912 = 272,912 : x
  2. Step 2: Convert to fraction form
    182,430/272,912 = 272,912/x
  3. Step 3: Cross multiply
    182,430x = 272,912 × 272,912
  4. Step 4: Simplify right side
    182,430x = 74,480,959,744
  5. Step 5: Solve for x
    x = 74,480,959,744/182,430
  6. Step 6: Final answer
    x = 408,271.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.