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Finding the Fourth Proportional to 281,808.16, 422,706.09 and 68,577.03

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Solution

The fourth proportional to 281,808.16, 422,706.09 and 68,577.03 is: 102,864.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,808.16 : 422,706.09 = 68,577.03 : x
  2. Step 2: Convert to fraction form
    281,808.16/422,706.09 = 68,577.03/x
  3. Step 3: Cross multiply
    281,808.16x = 422,706.09 × 68,577.03
  4. Step 4: Simplify right side
    281,808.16x = 28,987,928,472.28
  5. Step 5: Solve for x
    x = 28,987,928,472.28/281,808.16
  6. Step 6: Final answer
    x = 102,864.05

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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.