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Finding the Fourth Proportional to 312,773.82, 431,589.24 and 222,096.70

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Solution

The fourth proportional to 312,773.82, 431,589.24 and 222,096.70 is: 306,466.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,773.82 : 431,589.24 = 222,096.70 : x
  2. Step 2: Convert to fraction form
    312,773.82/431,589.24 = 222,096.70/x
  3. Step 3: Cross multiply
    312,773.82x = 431,589.24 × 222,096.70
  4. Step 4: Simplify right side
    312,773.82x = 95,854,545,874.35
  5. Step 5: Solve for x
    x = 95,854,545,874.35/312,773.82
  6. Step 6: Final answer
    x = 306,466.01

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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.