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Finding the Fourth Proportional to 188,817.80, 260,538.08 and 108,230.50

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Solution

The fourth proportional to 188,817.80, 260,538.08 and 108,230.50 is: 149,340.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,817.80 : 260,538.08 = 108,230.50 : x
  2. Step 2: Convert to fraction form
    188,817.80/260,538.08 = 108,230.50/x
  3. Step 3: Cross multiply
    188,817.80x = 260,538.08 × 108,230.50
  4. Step 4: Simplify right side
    188,817.80x = 28,198,166,667.44
  5. Step 5: Solve for x
    x = 28,198,166,667.44/188,817.80
  6. Step 6: Final answer
    x = 149,340.62

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1.5x scale

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.