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Finding the Fourth Proportional to 215,339.59, 322,219.41 and 179,712.91

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Solution

The fourth proportional to 215,339.59, 322,219.41 and 179,712.91 is: 268,910.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,339.59 : 322,219.41 = 179,712.91 : x
  2. Step 2: Convert to fraction form
    215,339.59/322,219.41 = 179,712.91/x
  3. Step 3: Cross multiply
    215,339.59x = 322,219.41 × 179,712.91
  4. Step 4: Simplify right side
    215,339.59x = 57,906,987,829.58
  5. Step 5: Solve for x
    x = 57,906,987,829.58/215,339.59
  6. Step 6: Final answer
    x = 268,910.09

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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.