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Finding the Third Proportional to 74,510 and 145,274

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Solution

The third proportional to 74,510 and 145,274 is: 283,244.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,510 : 145,274 = 145,274 : x
  2. Step 2: Convert to fraction form
    74,510/145,274 = 145,274/x
  3. Step 3: Cross multiply
    74,510x = 145,274 × 145,274
  4. Step 4: Simplify right side
    74,510x = 21,104,535,076
  5. Step 5: Solve for x
    x = 21,104,535,076/74,510
  6. Step 6: Final answer
    x = 283,244.33

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Why These Related Problems?

These problems maintain the same ratio (1.95) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.