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Finding the Third Proportional to 129,262 and 273,426

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Solution

The third proportional to 129,262 and 273,426 is: 578,373.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,262 : 273,426 = 273,426 : x
  2. Step 2: Convert to fraction form
    129,262/273,426 = 273,426/x
  3. Step 3: Cross multiply
    129,262x = 273,426 × 273,426
  4. Step 4: Simplify right side
    129,262x = 74,761,777,476
  5. Step 5: Solve for x
    x = 74,761,777,476/129,262
  6. Step 6: Final answer
    x = 578,373.98

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.