Home / 281,549.89-422,366.01-81,844.32

Finding the Fourth Proportional to 281,549.89, 422,366.01 and 81,844.32

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Solution

The fourth proportional to 281,549.89, 422,366.01 and 81,844.32 is: 122,778.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,549.89 : 422,366.01 = 81,844.32 : x
  2. Step 2: Convert to fraction form
    281,549.89/422,366.01 = 81,844.32/x
  3. Step 3: Cross multiply
    281,549.89x = 422,366.01 × 81,844.32
  4. Step 4: Simplify right side
    281,549.89x = 34,568,258,879.56
  5. Step 5: Solve for x
    x = 34,568,258,879.56/281,549.89
  6. Step 6: Final answer
    x = 122,778.45

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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.