Home / 203,273.07-305,188.91-103,500.31

Finding the Fourth Proportional to 203,273.07, 305,188.91 and 103,500.31

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Solution

The fourth proportional to 203,273.07, 305,188.91 and 103,500.31 is: 155,392.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,273.07 : 305,188.91 = 103,500.31 : x
  2. Step 2: Convert to fraction form
    203,273.07/305,188.91 = 103,500.31/x
  3. Step 3: Cross multiply
    203,273.07x = 305,188.91 × 103,500.31
  4. Step 4: Simplify right side
    203,273.07x = 31,587,146,793.56
  5. Step 5: Solve for x
    x = 31,587,146,793.56/203,273.07
  6. Step 6: Final answer
    x = 155,392.68

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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.