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Finding the Fourth Proportional to 342,272.67, 472,295.22 and 189,290.09

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Solution

The fourth proportional to 342,272.67, 472,295.22 and 189,290.09 is: 261,197.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,272.67 : 472,295.22 = 189,290.09 : x
  2. Step 2: Convert to fraction form
    342,272.67/472,295.22 = 189,290.09/x
  3. Step 3: Cross multiply
    342,272.67x = 472,295.22 × 189,290.09
  4. Step 4: Simplify right side
    342,272.67x = 89,400,802,338.89
  5. Step 5: Solve for x
    x = 89,400,802,338.89/342,272.67
  6. Step 6: Final answer
    x = 261,197.61

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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.