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Finding the Fourth Proportional to 208,843.69, 288,204.56 and 113,350.41

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Solution

The fourth proportional to 208,843.69, 288,204.56 and 113,350.41 is: 156,423.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,843.69 : 288,204.56 = 113,350.41 : x
  2. Step 2: Convert to fraction form
    208,843.69/288,204.56 = 113,350.41/x
  3. Step 3: Cross multiply
    208,843.69x = 288,204.56 × 113,350.41
  4. Step 4: Simplify right side
    208,843.69x = 32,668,105,039.87
  5. Step 5: Solve for x
    x = 32,668,105,039.87/208,843.69
  6. Step 6: Final answer
    x = 156,423.71

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1.5x scale

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.