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Finding the Fourth Proportional to 247,756.81, 342,046.05 and 163,119.91

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Solution

The fourth proportional to 247,756.81, 342,046.05 and 163,119.91 is: 225,198.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,756.81 : 342,046.05 = 163,119.91 : x
  2. Step 2: Convert to fraction form
    247,756.81/342,046.05 = 163,119.91/x
  3. Step 3: Cross multiply
    247,756.81x = 342,046.05 × 163,119.91
  4. Step 4: Simplify right side
    247,756.81x = 55,794,520,891.86
  5. Step 5: Solve for x
    x = 55,794,520,891.86/247,756.81
  6. Step 6: Final answer
    x = 225,198.74

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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.