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Finding the Fourth Proportional to 188,768.82, 283,152.96 and 129,424.56

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Solution

The fourth proportional to 188,768.82, 283,152.96 and 129,424.56 is: 194,136.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,768.82 : 283,152.96 = 129,424.56 : x
  2. Step 2: Convert to fraction form
    188,768.82/283,152.96 = 129,424.56/x
  3. Step 3: Cross multiply
    188,768.82x = 283,152.96 × 129,424.56
  4. Step 4: Simplify right side
    188,768.82x = 36,646,947,260.70
  5. Step 5: Solve for x
    x = 36,646,947,260.70/188,768.82
  6. Step 6: Final answer
    x = 194,136.65

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1.5x scale

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.