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Finding the Fourth Proportional to 383,439.74, 529,103.42 and 222,261.48

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Solution

The fourth proportional to 383,439.74, 529,103.42 and 222,261.48 is: 306,695.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,439.74 : 529,103.42 = 222,261.48 : x
  2. Step 2: Convert to fraction form
    383,439.74/529,103.42 = 222,261.48/x
  3. Step 3: Cross multiply
    383,439.74x = 529,103.42 × 222,261.48
  4. Step 4: Simplify right side
    383,439.74x = 117,599,309,202.26
  5. Step 5: Solve for x
    x = 117,599,309,202.26/383,439.74
  6. Step 6: Final answer
    x = 306,695.67

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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.