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Finding the Fourth Proportional to 204,079.80, 285,945 and 204,079.80

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Solution

The fourth proportional to 204,079.80, 285,945 and 204,079.80 is: 285,945

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,079.80 : 285,945 = 204,079.80 : x
  2. Step 2: Convert to fraction form
    204,079.80/285,945 = 204,079.80/x
  3. Step 3: Cross multiply
    204,079.80x = 285,945 × 204,079.80
  4. Step 4: Simplify right side
    204,079.80x = 58,355,598,411
  5. Step 5: Solve for x
    x = 58,355,598,411/204,079.80
  6. Step 6: Final answer
    x = 285,945

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.