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Finding the Fourth Proportional to 259,099.89, 388,649.84 and 101,217.63

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Solution

The fourth proportional to 259,099.89, 388,649.84 and 101,217.63 is: 151,826.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,099.89 : 388,649.84 = 101,217.63 : x
  2. Step 2: Convert to fraction form
    259,099.89/388,649.84 = 101,217.63/x
  3. Step 3: Cross multiply
    259,099.89x = 388,649.84 × 101,217.63
  4. Step 4: Simplify right side
    259,099.89x = 39,338,215,198.59
  5. Step 5: Solve for x
    x = 39,338,215,198.59/259,099.89
  6. Step 6: Final answer
    x = 151,826.45

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Similar ratio
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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.