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Finding the Fourth Proportional to 281,768.80, 422,679.32 and 101,899.20

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Solution

The fourth proportional to 281,768.80, 422,679.32 and 101,899.20 is: 152,858.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,768.80 : 422,679.32 = 101,899.20 : x
  2. Step 2: Convert to fraction form
    281,768.80/422,679.32 = 101,899.20/x
  3. Step 3: Cross multiply
    281,768.80x = 422,679.32 × 101,899.20
  4. Step 4: Simplify right side
    281,768.80x = 43,070,684,564.54
  5. Step 5: Solve for x
    x = 43,070,684,564.54/281,768.80
  6. Step 6: Final answer
    x = 152,858.25

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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.