Home / 235,429.20-352,625.40-209,163.60

Finding the Fourth Proportional to 235,429.20, 352,625.40 and 209,163.60

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Solution

The fourth proportional to 235,429.20, 352,625.40 and 209,163.60 is: 313,284.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,429.20 : 352,625.40 = 209,163.60 : x
  2. Step 2: Convert to fraction form
    235,429.20/352,625.40 = 209,163.60/x
  3. Step 3: Cross multiply
    235,429.20x = 352,625.40 × 209,163.60
  4. Step 4: Simplify right side
    235,429.20x = 73,756,398,115.44
  5. Step 5: Solve for x
    x = 73,756,398,115.44/235,429.20
  6. Step 6: Final answer
    x = 313,284.84

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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.