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Finding the Fourth Proportional to 321,550.92, 443,750.64 and 178,324.32

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Solution

The fourth proportional to 321,550.92, 443,750.64 and 178,324.32 is: 246,093.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,550.92 : 443,750.64 = 178,324.32 : x
  2. Step 2: Convert to fraction form
    321,550.92/443,750.64 = 178,324.32/x
  3. Step 3: Cross multiply
    321,550.92x = 443,750.64 × 178,324.32
  4. Step 4: Simplify right side
    321,550.92x = 79,131,531,127.56
  5. Step 5: Solve for x
    x = 79,131,531,127.56/321,550.92
  6. Step 6: Final answer
    x = 246,093.31

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1.5x scale

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.