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Finding the Fourth Proportional to 491,396.97, 737,099.55 and 136,438.67

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Solution

The fourth proportional to 491,396.97, 737,099.55 and 136,438.67 is: 204,659.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,396.97 : 737,099.55 = 136,438.67 : x
  2. Step 2: Convert to fraction form
    491,396.97/737,099.55 = 136,438.67/x
  3. Step 3: Cross multiply
    491,396.97x = 737,099.55 × 136,438.67
  4. Step 4: Simplify right side
    491,396.97x = 100,568,878,574.10
  5. Step 5: Solve for x
    x = 100,568,878,574.10/491,396.97
  6. Step 6: Final answer
    x = 204,659.13

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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.