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Finding the Third Proportional to 276,712.50 and 423,097.50

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Solution

The third proportional to 276,712.50 and 423,097.50 is: 646,922.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,712.50 : 423,097.50 = 423,097.50 : x
  2. Step 2: Convert to fraction form
    276,712.50/423,097.50 = 423,097.50/x
  3. Step 3: Cross multiply
    276,712.50x = 423,097.50 × 423,097.50
  4. Step 4: Simplify right side
    276,712.50x = 179,011,494,506.25
  5. Step 5: Solve for x
    x = 179,011,494,506.25/276,712.50
  6. Step 6: Final answer
    x = 646,922.33

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.