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Finding the Fourth Proportional to 281,244.64, 422,158.56 and 188,399.20

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Solution

The fourth proportional to 281,244.64, 422,158.56 and 188,399.20 is: 282,794.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,244.64 : 422,158.56 = 188,399.20 : x
  2. Step 2: Convert to fraction form
    281,244.64/422,158.56 = 188,399.20/x
  3. Step 3: Cross multiply
    281,244.64x = 422,158.56 × 188,399.20
  4. Step 4: Simplify right side
    281,244.64x = 79,534,334,977.15
  5. Step 5: Solve for x
    x = 79,534,334,977.15/281,244.64
  6. Step 6: Final answer
    x = 282,794.14

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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.