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Finding the Fourth Proportional to 234,861.44, 324,104.70 and 142,947.50

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Solution

The fourth proportional to 234,861.44, 324,104.70 and 142,947.50 is: 197,265.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,861.44 : 324,104.70 = 142,947.50 : x
  2. Step 2: Convert to fraction form
    234,861.44/324,104.70 = 142,947.50/x
  3. Step 3: Cross multiply
    234,861.44x = 324,104.70 × 142,947.50
  4. Step 4: Simplify right side
    234,861.44x = 46,329,956,603.25
  5. Step 5: Solve for x
    x = 46,329,956,603.25/234,861.44
  6. Step 6: Final answer
    x = 197,265.06

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Why These Related Problems?

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