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Finding the Fourth Proportional to 284,441.80, 426,273.90 and 189,401.80

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Solution

The fourth proportional to 284,441.80, 426,273.90 and 189,401.80 is: 283,843.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,441.80 : 426,273.90 = 189,401.80 : x
  2. Step 2: Convert to fraction form
    284,441.80/426,273.90 = 189,401.80/x
  3. Step 3: Cross multiply
    284,441.80x = 426,273.90 × 189,401.80
  4. Step 4: Simplify right side
    284,441.80x = 80,737,043,953.02
  5. Step 5: Solve for x
    x = 80,737,043,953.02/284,441.80
  6. Step 6: Final answer
    x = 283,843.81

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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.