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Finding the Third Proportional to 76,329 and 136,254

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Solution

The third proportional to 76,329 and 136,254 is: 243,225.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,329 : 136,254 = 136,254 : x
  2. Step 2: Convert to fraction form
    76,329/136,254 = 136,254/x
  3. Step 3: Cross multiply
    76,329x = 136,254 × 136,254
  4. Step 4: Simplify right side
    76,329x = 18,565,152,516
  5. Step 5: Solve for x
    x = 18,565,152,516/76,329
  6. Step 6: Final answer
    x = 243,225.41

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Why These Related Problems?

These problems maintain the same ratio (1.79) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.