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Finding the Fourth Proportional to 321,601.96, 443,757.54 and 178,339.24

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Solution

The fourth proportional to 321,601.96, 443,757.54 and 178,339.24 is: 246,078.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,601.96 : 443,757.54 = 178,339.24 : x
  2. Step 2: Convert to fraction form
    321,601.96/443,757.54 = 178,339.24/x
  3. Step 3: Cross multiply
    321,601.96x = 443,757.54 × 178,339.24
  4. Step 4: Simplify right side
    321,601.96x = 79,139,382,427.87
  5. Step 5: Solve for x
    x = 79,139,382,427.87/321,601.96
  6. Step 6: Final answer
    x = 246,078.67

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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.