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Finding the Third Proportional to 129,984 and 264,576

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Solution

The third proportional to 129,984 and 264,576 is: 538,531.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,984 : 264,576 = 264,576 : x
  2. Step 2: Convert to fraction form
    129,984/264,576 = 264,576/x
  3. Step 3: Cross multiply
    129,984x = 264,576 × 264,576
  4. Step 4: Simplify right side
    129,984x = 70,000,459,776
  5. Step 5: Solve for x
    x = 70,000,459,776/129,984
  6. Step 6: Final answer
    x = 538,531.36

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.