Home / 203,917.60-305,584.80-141,515.20

Finding the Fourth Proportional to 203,917.60, 305,584.80 and 141,515.20

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Solution

The fourth proportional to 203,917.60, 305,584.80 and 141,515.20 is: 212,070.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,917.60 : 305,584.80 = 141,515.20 : x
  2. Step 2: Convert to fraction form
    203,917.60/305,584.80 = 141,515.20/x
  3. Step 3: Cross multiply
    203,917.60x = 305,584.80 × 141,515.20
  4. Step 4: Simplify right side
    203,917.60x = 43,244,894,088.96
  5. Step 5: Solve for x
    x = 43,244,894,088.96/203,917.60
  6. Step 6: Final answer
    x = 212,070.43

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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.