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Finding the Fourth Proportional to 322,589.40, 445,148.08 and 179,340.72

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Solution

The fourth proportional to 322,589.40, 445,148.08 and 179,340.72 is: 247,476.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,589.40 : 445,148.08 = 179,340.72 : x
  2. Step 2: Convert to fraction form
    322,589.40/445,148.08 = 179,340.72/x
  3. Step 3: Cross multiply
    322,589.40x = 445,148.08 × 179,340.72
  4. Step 4: Simplify right side
    322,589.40x = 79,833,177,173.82
  5. Step 5: Solve for x
    x = 79,833,177,173.82/322,589.40
  6. Step 6: Final answer
    x = 247,476.13

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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.