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Finding the Fourth Proportional to 271,915.20, 407,872.80 and 269,946.90

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Solution

The fourth proportional to 271,915.20, 407,872.80 and 269,946.90 is: 404,920.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,915.20 : 407,872.80 = 269,946.90 : x
  2. Step 2: Convert to fraction form
    271,915.20/407,872.80 = 269,946.90/x
  3. Step 3: Cross multiply
    271,915.20x = 407,872.80 × 269,946.90
  4. Step 4: Simplify right side
    271,915.20x = 110,103,997,954.32
  5. Step 5: Solve for x
    x = 110,103,997,954.32/271,915.20
  6. Step 6: Final answer
    x = 404,920.35

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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.