Home / 208,826.20-313,239.30-120,352.60

Finding the Fourth Proportional to 208,826.20, 313,239.30 and 120,352.60

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Solution

The fourth proportional to 208,826.20, 313,239.30 and 120,352.60 is: 180,528.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,826.20 : 313,239.30 = 120,352.60 : x
  2. Step 2: Convert to fraction form
    208,826.20/313,239.30 = 120,352.60/x
  3. Step 3: Cross multiply
    208,826.20x = 313,239.30 × 120,352.60
  4. Step 4: Simplify right side
    208,826.20x = 37,699,164,177.18
  5. Step 5: Solve for x
    x = 37,699,164,177.18/208,826.20
  6. Step 6: Final answer
    x = 180,528.90

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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.