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Finding the Fourth Proportional to 159,352.40, 239,057.40 and 80,267.60

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Solution

The fourth proportional to 159,352.40, 239,057.40 and 80,267.60 is: 120,415.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,352.40 : 239,057.40 = 80,267.60 : x
  2. Step 2: Convert to fraction form
    159,352.40/239,057.40 = 80,267.60/x
  3. Step 3: Cross multiply
    159,352.40x = 239,057.40 × 80,267.60
  4. Step 4: Simplify right side
    159,352.40x = 19,188,563,760.24
  5. Step 5: Solve for x
    x = 19,188,563,760.24/159,352.40
  6. Step 6: Final answer
    x = 120,415.91

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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.