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Finding the Fourth Proportional to 271,909.70, 407,864.55 and 269,941.40

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Solution

The fourth proportional to 271,909.70, 407,864.55 and 269,941.40 is: 404,912.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,909.70 : 407,864.55 = 269,941.40 : x
  2. Step 2: Convert to fraction form
    271,909.70/407,864.55 = 269,941.40/x
  3. Step 3: Cross multiply
    271,909.70x = 407,864.55 × 269,941.40
  4. Step 4: Simplify right side
    271,909.70x = 110,099,527,637.37
  5. Step 5: Solve for x
    x = 110,099,527,637.37/271,909.70
  6. Step 6: Final answer
    x = 404,912.10

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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.