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Finding the Fourth Proportional to 329,990.63, 455,392.53 and 179,087.63

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Solution

The fourth proportional to 329,990.63, 455,392.53 and 179,087.63 is: 247,143.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,990.63 : 455,392.53 = 179,087.63 : x
  2. Step 2: Convert to fraction form
    329,990.63/455,392.53 = 179,087.63/x
  3. Step 3: Cross multiply
    329,990.63x = 455,392.53 × 179,087.63
  4. Step 4: Simplify right side
    329,990.63x = 81,555,166,640.44
  5. Step 5: Solve for x
    x = 81,555,166,640.44/329,990.63
  6. Step 6: Final answer
    x = 247,143.89

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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.