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Finding the Third Proportional to 276,810.75 and 433,668.38

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Solution

The third proportional to 276,810.75 and 433,668.38 is: 679,410.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,810.75 : 433,668.38 = 433,668.38 : x
  2. Step 2: Convert to fraction form
    276,810.75/433,668.38 = 433,668.38/x
  3. Step 3: Cross multiply
    276,810.75x = 433,668.38 × 433,668.38
  4. Step 4: Simplify right side
    276,810.75x = 188,068,259,475.14
  5. Step 5: Solve for x
    x = 188,068,259,475.14/276,810.75
  6. Step 6: Final answer
    x = 679,410.97

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.