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Finding the Fourth Proportional to 322,516.64, 445,074.64 and 179,290.08

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Solution

The fourth proportional to 322,516.64, 445,074.64 and 179,290.08 is: 247,421.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,516.64 : 445,074.64 = 179,290.08 : x
  2. Step 2: Convert to fraction form
    322,516.64/445,074.64 = 179,290.08/x
  3. Step 3: Cross multiply
    322,516.64x = 445,074.64 × 179,290.08
  4. Step 4: Simplify right side
    322,516.64x = 79,797,467,811.57
  5. Step 5: Solve for x
    x = 79,797,467,811.57/322,516.64
  6. Step 6: Final answer
    x = 247,421.24

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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.