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Finding the Fourth Proportional to 201,005.20, 301,248.60 and 122,035.60

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Solution

The fourth proportional to 201,005.20, 301,248.60 and 122,035.60 is: 182,896.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,005.20 : 301,248.60 = 122,035.60 : x
  2. Step 2: Convert to fraction form
    201,005.20/301,248.60 = 122,035.60/x
  3. Step 3: Cross multiply
    201,005.20x = 301,248.60 × 122,035.60
  4. Step 4: Simplify right side
    201,005.20x = 36,763,053,650.16
  5. Step 5: Solve for x
    x = 36,763,053,650.16/201,005.20
  6. Step 6: Final answer
    x = 182,896.03

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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.