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Finding the Fourth Proportional to 342,149.94, 513,253.62 and 126,067.50

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Solution

The fourth proportional to 342,149.94, 513,253.62 and 126,067.50 is: 189,111.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,149.94 : 513,253.62 = 126,067.50 : x
  2. Step 2: Convert to fraction form
    342,149.94/513,253.62 = 126,067.50/x
  3. Step 3: Cross multiply
    342,149.94x = 513,253.62 × 126,067.50
  4. Step 4: Simplify right side
    342,149.94x = 64,704,600,739.35
  5. Step 5: Solve for x
    x = 64,704,600,739.35/342,149.94
  6. Step 6: Final answer
    x = 189,111.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.