Home / 208,972.86-288,382.60-113,479.56

Finding the Fourth Proportional to 208,972.86, 288,382.60 and 113,479.56

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Solution

The fourth proportional to 208,972.86, 288,382.60 and 113,479.56 is: 156,601.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,972.86 : 288,382.60 = 113,479.56 : x
  2. Step 2: Convert to fraction form
    208,972.86/288,382.60 = 113,479.56/x
  3. Step 3: Cross multiply
    208,972.86x = 288,382.60 × 113,479.56
  4. Step 4: Simplify right side
    208,972.86x = 32,725,530,209.59
  5. Step 5: Solve for x
    x = 32,725,530,209.59/208,972.86
  6. Step 6: Final answer
    x = 156,601.82

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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.