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Finding the Third Proportional to 139,272 and 203,076

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Solution

The third proportional to 139,272 and 203,076 is: 296,110.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,272 : 203,076 = 203,076 : x
  2. Step 2: Convert to fraction form
    139,272/203,076 = 203,076/x
  3. Step 3: Cross multiply
    139,272x = 203,076 × 203,076
  4. Step 4: Simplify right side
    139,272x = 41,239,861,776
  5. Step 5: Solve for x
    x = 41,239,861,776/139,272
  6. Step 6: Final answer
    x = 296,110.21

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.