Home / 256,542.30-384,922.80-161,845.20

Finding the Fourth Proportional to 256,542.30, 384,922.80 and 161,845.20

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Solution

The fourth proportional to 256,542.30, 384,922.80 and 161,845.20 is: 242,836.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,542.30 : 384,922.80 = 161,845.20 : x
  2. Step 2: Convert to fraction form
    256,542.30/384,922.80 = 161,845.20/x
  3. Step 3: Cross multiply
    256,542.30x = 384,922.80 × 161,845.20
  4. Step 4: Simplify right side
    256,542.30x = 62,297,907,550.56
  5. Step 5: Solve for x
    x = 62,297,907,550.56/256,542.30
  6. Step 6: Final answer
    x = 242,836.79

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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.