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Finding the Fourth Proportional to 284,550.80, 426,826.20 and 271,428.80

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Solution

The fourth proportional to 284,550.80, 426,826.20 and 271,428.80 is: 407,143.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,550.80 : 426,826.20 = 271,428.80 : x
  2. Step 2: Convert to fraction form
    284,550.80/426,826.20 = 271,428.80/x
  3. Step 3: Cross multiply
    284,550.80x = 426,826.20 × 271,428.80
  4. Step 4: Simplify right side
    284,550.80x = 115,852,923,274.56
  5. Step 5: Solve for x
    x = 115,852,923,274.56/284,550.80
  6. Step 6: Final answer
    x = 407,143.20

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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.