Home / 321,213.39-443,313.81-185,247.30

Finding the Fourth Proportional to 321,213.39, 443,313.81 and 185,247.30

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Solution

The fourth proportional to 321,213.39, 443,313.81 and 185,247.30 is: 255,663.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,213.39 : 443,313.81 = 185,247.30 : x
  2. Step 2: Convert to fraction form
    321,213.39/443,313.81 = 185,247.30/x
  3. Step 3: Cross multiply
    321,213.39x = 443,313.81 × 185,247.30
  4. Step 4: Simplify right side
    321,213.39x = 82,122,686,355.21
  5. Step 5: Solve for x
    x = 82,122,686,355.21/321,213.39
  6. Step 6: Final answer
    x = 255,663.96

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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.