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Finding the Fourth Proportional to 281,944.52, 422,994.87 and 130,187.98

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Solution

The fourth proportional to 281,944.52, 422,994.87 and 130,187.98 is: 195,318.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,944.52 : 422,994.87 = 130,187.98 : x
  2. Step 2: Convert to fraction form
    281,944.52/422,994.87 = 130,187.98/x
  3. Step 3: Cross multiply
    281,944.52x = 422,994.87 × 130,187.98
  4. Step 4: Simplify right side
    281,944.52x = 55,068,846,618.18
  5. Step 5: Solve for x
    x = 55,068,846,618.18/281,944.52
  6. Step 6: Final answer
    x = 195,318.03

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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.