Home / 203,913.60-305,578.80-141,511.20

Finding the Fourth Proportional to 203,913.60, 305,578.80 and 141,511.20

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Solution

The fourth proportional to 203,913.60, 305,578.80 and 141,511.20 is: 212,064.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,913.60 : 305,578.80 = 141,511.20 : x
  2. Step 2: Convert to fraction form
    203,913.60/305,578.80 = 141,511.20/x
  3. Step 3: Cross multiply
    203,913.60x = 305,578.80 × 141,511.20
  4. Step 4: Simplify right side
    203,913.60x = 43,242,822,682.56
  5. Step 5: Solve for x
    x = 43,242,822,682.56/203,913.60
  6. Step 6: Final answer
    x = 212,064.44

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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.