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Finding the Fourth Proportional to 188,768.82, 283,152.94 and 129,424.58

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Solution

The fourth proportional to 188,768.82, 283,152.94 and 129,424.58 is: 194,136.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,768.82 : 283,152.94 = 129,424.58 : x
  2. Step 2: Convert to fraction form
    188,768.82/283,152.94 = 129,424.58/x
  3. Step 3: Cross multiply
    188,768.82x = 283,152.94 × 129,424.58
  4. Step 4: Simplify right side
    188,768.82x = 36,646,950,335.27
  5. Step 5: Solve for x
    x = 36,646,950,335.27/188,768.82
  6. Step 6: Final answer
    x = 194,136.67

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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.