Home / 321,621.38-443,324.85-253,527.38

Finding the Fourth Proportional to 321,621.38, 443,324.85 and 253,527.38

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Solution

The fourth proportional to 321,621.38, 443,324.85 and 253,527.38 is: 349,463.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,621.38 : 443,324.85 = 253,527.38 : x
  2. Step 2: Convert to fraction form
    321,621.38/443,324.85 = 253,527.38/x
  3. Step 3: Cross multiply
    321,621.38x = 443,324.85 × 253,527.38
  4. Step 4: Simplify right side
    321,621.38x = 112,394,987,709.39
  5. Step 5: Solve for x
    x = 112,394,987,709.39/321,621.38
  6. Step 6: Final answer
    x = 349,463.67

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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.