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Finding the Fourth Proportional to 281,553.86, 422,286.77 and 92,012.72

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Solution

The fourth proportional to 281,553.86, 422,286.77 and 92,012.72 is: 138,004.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,553.86 : 422,286.77 = 92,012.72 : x
  2. Step 2: Convert to fraction form
    281,553.86/422,286.77 = 92,012.72/x
  3. Step 3: Cross multiply
    281,553.86x = 422,286.77 × 92,012.72
  4. Step 4: Simplify right side
    281,553.86x = 38,855,754,327.71
  5. Step 5: Solve for x
    x = 38,855,754,327.71/281,553.86
  6. Step 6: Final answer
    x = 138,004.69

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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.