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Finding the Fourth Proportional to 422,438.97, 633,647.51 and 141,956.22

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Solution

The fourth proportional to 422,438.97, 633,647.51 and 141,956.22 is: 212,930.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,438.97 : 633,647.51 = 141,956.22 : x
  2. Step 2: Convert to fraction form
    422,438.97/633,647.51 = 141,956.22/x
  3. Step 3: Cross multiply
    422,438.97x = 633,647.51 × 141,956.22
  4. Step 4: Simplify right side
    422,438.97x = 89,950,204,622.23
  5. Step 5: Solve for x
    x = 89,950,204,622.23/422,438.97
  6. Step 6: Final answer
    x = 212,930.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.