Home / 208,845.20-288,206.64-113,351.90

Finding the Fourth Proportional to 208,845.20, 288,206.64 and 113,351.90

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Solution

The fourth proportional to 208,845.20, 288,206.64 and 113,351.90 is: 156,425.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,845.20 : 288,206.64 = 113,351.90 : x
  2. Step 2: Convert to fraction form
    208,845.20/288,206.64 = 113,351.90/x
  3. Step 3: Cross multiply
    208,845.20x = 288,206.64 × 113,351.90
  4. Step 4: Simplify right side
    208,845.20x = 32,668,770,236.62
  5. Step 5: Solve for x
    x = 32,668,770,236.62/208,845.20
  6. Step 6: Final answer
    x = 156,425.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.