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Finding the Fourth Proportional to 150,357.92, 207,493.80 and 82,379.12

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Solution

The fourth proportional to 150,357.92, 207,493.80 and 82,379.12 is: 113,683.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,357.92 : 207,493.80 = 82,379.12 : x
  2. Step 2: Convert to fraction form
    150,357.92/207,493.80 = 82,379.12/x
  3. Step 3: Cross multiply
    150,357.92x = 207,493.80 × 82,379.12
  4. Step 4: Simplify right side
    150,357.92x = 17,093,155,611.99
  5. Step 5: Solve for x
    x = 17,093,155,611.99/150,357.92
  6. Step 6: Final answer
    x = 113,683.11

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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.