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Finding the Third Proportional to 235,279.69 and 355,126.78

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Solution

The third proportional to 235,279.69 and 355,126.78 is: 536,021.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,279.69 : 355,126.78 = 355,126.78 : x
  2. Step 2: Convert to fraction form
    235,279.69/355,126.78 = 355,126.78/x
  3. Step 3: Cross multiply
    235,279.69x = 355,126.78 × 355,126.78
  4. Step 4: Simplify right side
    235,279.69x = 126,115,030,760.99
  5. Step 5: Solve for x
    x = 126,115,030,760.99/235,279.69
  6. Step 6: Final answer
    x = 536,021.75

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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.