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Finding the Fourth Proportional to 271,927.20, 407,890.80 and 269,958.90

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Solution

The fourth proportional to 271,927.20, 407,890.80 and 269,958.90 is: 404,938.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,927.20 : 407,890.80 = 269,958.90 : x
  2. Step 2: Convert to fraction form
    271,927.20/407,890.80 = 269,958.90/x
  3. Step 3: Cross multiply
    271,927.20x = 407,890.80 × 269,958.90
  4. Step 4: Simplify right side
    271,927.20x = 110,113,751,688.12
  5. Step 5: Solve for x
    x = 110,113,751,688.12/271,927.20
  6. Step 6: Final answer
    x = 404,938.35

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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.