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Finding the Fourth Proportional to 271,763.60, 407,256.60 and 200,127.20

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Solution

The fourth proportional to 271,763.60, 407,256.60 and 200,127.20 is: 299,904.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,763.60 : 407,256.60 = 200,127.20 : x
  2. Step 2: Convert to fraction form
    271,763.60/407,256.60 = 200,127.20/x
  3. Step 3: Cross multiply
    271,763.60x = 407,256.60 × 200,127.20
  4. Step 4: Simplify right side
    271,763.60x = 81,503,123,039.52
  5. Step 5: Solve for x
    x = 81,503,123,039.52/271,763.60
  6. Step 6: Final answer
    x = 299,904.49

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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.