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Finding the Fourth Proportional to 284,145.89, 425,879.89 and 132,137.77

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Solution

The fourth proportional to 284,145.89, 425,879.89 and 132,137.77 is: 198,049.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,145.89 : 425,879.89 = 132,137.77 : x
  2. Step 2: Convert to fraction form
    284,145.89/425,879.89 = 132,137.77/x
  3. Step 3: Cross multiply
    284,145.89x = 425,879.89 × 132,137.77
  4. Step 4: Simplify right side
    284,145.89x = 56,274,819,708.45
  5. Step 5: Solve for x
    x = 56,274,819,708.45/284,145.89
  6. Step 6: Final answer
    x = 198,049.04

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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.