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Finding the Third Proportional to 287,529.75 and 435,324.38

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Solution

The third proportional to 287,529.75 and 435,324.38 is: 659,087.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,529.75 : 435,324.38 = 435,324.38 : x
  2. Step 2: Convert to fraction form
    287,529.75/435,324.38 = 435,324.38/x
  3. Step 3: Cross multiply
    287,529.75x = 435,324.38 × 435,324.38
  4. Step 4: Simplify right side
    287,529.75x = 189,507,311,469.14
  5. Step 5: Solve for x
    x = 189,507,311,469.14/287,529.75
  6. Step 6: Final answer
    x = 659,087.66

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.