Home / 271,815.70-407,788.35-131,458.90

Finding the Fourth Proportional to 271,815.70, 407,788.35 and 131,458.90

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Solution

The fourth proportional to 271,815.70, 407,788.35 and 131,458.90 is: 197,219.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,815.70 : 407,788.35 = 131,458.90 : x
  2. Step 2: Convert to fraction form
    271,815.70/407,788.35 = 131,458.90/x
  3. Step 3: Cross multiply
    271,815.70x = 407,788.35 × 131,458.90
  4. Step 4: Simplify right side
    271,815.70x = 53,607,407,923.82
  5. Step 5: Solve for x
    x = 53,607,407,923.82/271,815.70
  6. Step 6: Final answer
    x = 197,219.69

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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.