Home / 253,273.06-379,910.30-103,513.37

Finding the Fourth Proportional to 253,273.06, 379,910.30 and 103,513.37

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Solution

The fourth proportional to 253,273.06, 379,910.30 and 103,513.37 is: 155,270.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,273.06 : 379,910.30 = 103,513.37 : x
  2. Step 2: Convert to fraction form
    253,273.06/379,910.30 = 103,513.37/x
  3. Step 3: Cross multiply
    253,273.06x = 379,910.30 × 103,513.37
  4. Step 4: Simplify right side
    253,273.06x = 39,325,795,882.92
  5. Step 5: Solve for x
    x = 39,325,795,882.92/253,273.06
  6. Step 6: Final answer
    x = 155,270.35

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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.