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Finding the Fourth Proportional to 203,085.36, 280,287.30 and 117,027.58

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Solution

The fourth proportional to 203,085.36, 280,287.30 and 117,027.58 is: 161,515.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,085.36 : 280,287.30 = 117,027.58 : x
  2. Step 2: Convert to fraction form
    203,085.36/280,287.30 = 117,027.58/x
  3. Step 3: Cross multiply
    203,085.36x = 280,287.30 × 117,027.58
  4. Step 4: Simplify right side
    203,085.36x = 32,801,344,423.73
  5. Step 5: Solve for x
    x = 32,801,344,423.73/203,085.36
  6. Step 6: Final answer
    x = 161,515.06

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.