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Finding the Fourth Proportional to 322,770.72, 445,314.24 and 230,812.32

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Solution

The fourth proportional to 322,770.72, 445,314.24 and 230,812.32 is: 318,442.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,770.72 : 445,314.24 = 230,812.32 : x
  2. Step 2: Convert to fraction form
    322,770.72/445,314.24 = 230,812.32/x
  3. Step 3: Cross multiply
    322,770.72x = 445,314.24 × 230,812.32
  4. Step 4: Simplify right side
    322,770.72x = 102,784,012,863.44
  5. Step 5: Solve for x
    x = 102,784,012,863.44/322,770.72
  6. Step 6: Final answer
    x = 318,442.80

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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.