Home / 271,442.09-407,295.63-191,990.54

Finding the Fourth Proportional to 271,442.09, 407,295.63 and 191,990.54

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Solution

The fourth proportional to 271,442.09, 407,295.63 and 191,990.54 is: 288,079.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,442.09 : 407,295.63 = 191,990.54 : x
  2. Step 2: Convert to fraction form
    271,442.09/407,295.63 = 191,990.54/x
  3. Step 3: Cross multiply
    271,442.09x = 407,295.63 × 191,990.54
  4. Step 4: Simplify right side
    271,442.09x = 78,196,905,906.86
  5. Step 5: Solve for x
    x = 78,196,905,906.86/271,442.09
  6. Step 6: Final answer
    x = 288,079.52

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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.