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Finding the Fourth Proportional to 383,362.57, 529,042.49 and 222,313.21

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Solution

The fourth proportional to 383,362.57, 529,042.49 and 222,313.21 is: 306,793.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,362.57 : 529,042.49 = 222,313.21 : x
  2. Step 2: Convert to fraction form
    383,362.57/529,042.49 = 222,313.21/x
  3. Step 3: Cross multiply
    383,362.57x = 529,042.49 × 222,313.21
  4. Step 4: Simplify right side
    383,362.57x = 117,613,132,577.80
  5. Step 5: Solve for x
    x = 117,613,132,577.80/383,362.57
  6. Step 6: Final answer
    x = 306,793.47

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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.