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Finding the Fourth Proportional to 315,608.81, 435,542.94 and 179,651.52

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Solution

The fourth proportional to 315,608.81, 435,542.94 and 179,651.52 is: 247,920.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,608.81 : 435,542.94 = 179,651.52 : x
  2. Step 2: Convert to fraction form
    315,608.81/435,542.94 = 179,651.52/x
  3. Step 3: Cross multiply
    315,608.81x = 435,542.94 × 179,651.52
  4. Step 4: Simplify right side
    315,608.81x = 78,245,951,196.27
  5. Step 5: Solve for x
    x = 78,245,951,196.27/315,608.81
  6. Step 6: Final answer
    x = 247,920.69

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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.