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Finding the Fourth Proportional to 201,200.30, 301,691.10 and 82,883.60

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Solution

The fourth proportional to 201,200.30, 301,691.10 and 82,883.60 is: 124,280.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,200.30 : 301,691.10 = 82,883.60 : x
  2. Step 2: Convert to fraction form
    201,200.30/301,691.10 = 82,883.60/x
  3. Step 3: Cross multiply
    201,200.30x = 301,691.10 × 82,883.60
  4. Step 4: Simplify right side
    201,200.30x = 25,005,244,455.96
  5. Step 5: Solve for x
    x = 25,005,244,455.96/201,200.30
  6. Step 6: Final answer
    x = 124,280.35

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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.