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Finding the Fourth Proportional to 271,818.62, 408,392.49 and 256,711.58

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Solution

The fourth proportional to 271,818.62, 408,392.49 and 256,711.58 is: 385,695.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,818.62 : 408,392.49 = 256,711.58 : x
  2. Step 2: Convert to fraction form
    271,818.62/408,392.49 = 256,711.58/x
  3. Step 3: Cross multiply
    271,818.62x = 408,392.49 × 256,711.58
  4. Step 4: Simplify right side
    271,818.62x = 104,839,081,368.03
  5. Step 5: Solve for x
    x = 104,839,081,368.03/271,818.62
  6. Step 6: Final answer
    x = 385,695.00

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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.