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Finding the Fourth Proportional to 203,601.48, 305,254.60 and 136,876.20

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Solution

The fourth proportional to 203,601.48, 305,254.60 and 136,876.20 is: 205,215.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,601.48 : 305,254.60 = 136,876.20 : x
  2. Step 2: Convert to fraction form
    203,601.48/305,254.60 = 136,876.20/x
  3. Step 3: Cross multiply
    203,601.48x = 305,254.60 × 136,876.20
  4. Step 4: Simplify right side
    203,601.48x = 41,782,089,680.52
  5. Step 5: Solve for x
    x = 41,782,089,680.52/203,601.48
  6. Step 6: Final answer
    x = 205,215.06

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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.