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Finding the Third Proportional to 132,440.50 and 289,908

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Solution

The third proportional to 132,440.50 and 289,908 is: 634,599.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,440.50 : 289,908 = 289,908 : x
  2. Step 2: Convert to fraction form
    132,440.50/289,908 = 289,908/x
  3. Step 3: Cross multiply
    132,440.50x = 289,908 × 289,908
  4. Step 4: Simplify right side
    132,440.50x = 84,046,648,464
  5. Step 5: Solve for x
    x = 84,046,648,464/132,440.50
  6. Step 6: Final answer
    x = 634,599.30

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.