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Finding the Fourth Proportional to 232,980.72, 321,515.64 and 132,379.44

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Solution

The fourth proportional to 232,980.72, 321,515.64 and 132,379.44 is: 182,684.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    232,980.72 : 321,515.64 = 132,379.44 : x
  2. Step 2: Convert to fraction form
    232,980.72/321,515.64 = 132,379.44/x
  3. Step 3: Cross multiply
    232,980.72x = 321,515.64 × 132,379.44
  4. Step 4: Simplify right side
    232,980.72x = 42,562,060,374.44
  5. Step 5: Solve for x
    x = 42,562,060,374.44/232,980.72
  6. Step 6: Final answer
    x = 182,684.90

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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.