Home / 271,490.10-407,119.95-131,291.70

Finding the Fourth Proportional to 271,490.10, 407,119.95 and 131,291.70

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Solution

The fourth proportional to 271,490.10, 407,119.95 and 131,291.70 is: 196,881.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,490.10 : 407,119.95 = 131,291.70 : x
  2. Step 2: Convert to fraction form
    271,490.10/407,119.95 = 131,291.70/x
  3. Step 3: Cross multiply
    271,490.10x = 407,119.95 × 131,291.70
  4. Step 4: Simplify right side
    271,490.10x = 53,451,470,339.42
  5. Step 5: Solve for x
    x = 53,451,470,339.42/271,490.10
  6. Step 6: Final answer
    x = 196,881.84

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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.