Home / 253,273.43-379,910.86-103,513.75

Finding the Fourth Proportional to 253,273.43, 379,910.86 and 103,513.75

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Solution

The fourth proportional to 253,273.43, 379,910.86 and 103,513.75 is: 155,270.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,273.43 : 379,910.86 = 103,513.75 : x
  2. Step 2: Convert to fraction form
    253,273.43/379,910.86 = 103,513.75/x
  3. Step 3: Cross multiply
    253,273.43x = 379,910.86 × 103,513.75
  4. Step 4: Simplify right side
    253,273.43x = 39,325,996,575.76
  5. Step 5: Solve for x
    x = 39,325,996,575.76/253,273.43
  6. Step 6: Final answer
    x = 155,270.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.