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Finding the Fourth Proportional to 329,992.31, 455,389.62 and 179,089.31

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Solution

The fourth proportional to 329,992.31, 455,389.62 and 179,089.31 is: 247,143.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,992.31 : 455,389.62 = 179,089.31 : x
  2. Step 2: Convert to fraction form
    329,992.31/455,389.62 = 179,089.31/x
  3. Step 3: Cross multiply
    329,992.31x = 455,389.62 × 179,089.31
  4. Step 4: Simplify right side
    329,992.31x = 81,555,412,826.96
  5. Step 5: Solve for x
    x = 81,555,412,826.96/329,992.31
  6. Step 6: Final answer
    x = 247,143.37

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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.