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Finding the Fourth Proportional to 342,092.64, 472,067.51 and 189,121.67

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Solution

The fourth proportional to 342,092.64, 472,067.51 and 189,121.67 is: 260,976.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,092.64 : 472,067.51 = 189,121.67 : x
  2. Step 2: Convert to fraction form
    342,092.64/472,067.51 = 189,121.67/x
  3. Step 3: Cross multiply
    342,092.64x = 472,067.51 × 189,121.67
  4. Step 4: Simplify right side
    342,092.64x = 89,278,192,538.00
  5. Step 5: Solve for x
    x = 89,278,192,538.00/342,092.64
  6. Step 6: Final answer
    x = 260,976.65

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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.