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Finding the Fourth Proportional to 281,589.26, 422,429.93 and 91,994.59

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Solution

The fourth proportional to 281,589.26, 422,429.93 and 91,994.59 is: 138,006.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,589.26 : 422,429.93 = 91,994.59 : x
  2. Step 2: Convert to fraction form
    281,589.26/422,429.93 = 91,994.59/x
  3. Step 3: Cross multiply
    281,589.26x = 422,429.93 × 91,994.59
  4. Step 4: Simplify right side
    281,589.26x = 38,861,265,641.96
  5. Step 5: Solve for x
    x = 38,861,265,641.96/281,589.26
  6. Step 6: Final answer
    x = 138,006.92

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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.