Home / 271,844.20-407,831.10-131,487.40

Finding the Fourth Proportional to 271,844.20, 407,831.10 and 131,487.40

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Solution

The fourth proportional to 271,844.20, 407,831.10 and 131,487.40 is: 197,262.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,844.20 : 407,831.10 = 131,487.40 : x
  2. Step 2: Convert to fraction form
    271,844.20/407,831.10 = 131,487.40/x
  3. Step 3: Cross multiply
    271,844.20x = 407,831.10 × 131,487.40
  4. Step 4: Simplify right side
    271,844.20x = 53,624,650,978.14
  5. Step 5: Solve for x
    x = 53,624,650,978.14/271,844.20
  6. Step 6: Final answer
    x = 197,262.44

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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.