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Finding the Fourth Proportional to 285,611.03, 427,995.38 and 159,076.97

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Solution

The fourth proportional to 285,611.03, 427,995.38 and 159,076.97 is: 238,380.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,611.03 : 427,995.38 = 159,076.97 : x
  2. Step 2: Convert to fraction form
    285,611.03/427,995.38 = 159,076.97/x
  3. Step 3: Cross multiply
    285,611.03x = 427,995.38 × 159,076.97
  4. Step 4: Simplify right side
    285,611.03x = 68,084,209,692.08
  5. Step 5: Solve for x
    x = 68,084,209,692.08/285,611.03
  6. Step 6: Final answer
    x = 238,380.88

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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.