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Finding the Fourth Proportional to 322,641.65, 445,242.71 and 179,400.44

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Solution

The fourth proportional to 322,641.65, 445,242.71 and 179,400.44 is: 247,571.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,641.65 : 445,242.71 = 179,400.44 : x
  2. Step 2: Convert to fraction form
    322,641.65/445,242.71 = 179,400.44/x
  3. Step 3: Cross multiply
    322,641.65x = 445,242.71 × 179,400.44
  4. Step 4: Simplify right side
    322,641.65x = 79,876,739,642.40
  5. Step 5: Solve for x
    x = 79,876,739,642.40/322,641.65
  6. Step 6: Final answer
    x = 247,571.07

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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.