Home / 330,768.96-456,495-194,845.68

Finding the Fourth Proportional to 330,768.96, 456,495 and 194,845.68

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Solution

The fourth proportional to 330,768.96, 456,495 and 194,845.68 is: 268,906.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,768.96 : 456,495 = 194,845.68 : x
  2. Step 2: Convert to fraction form
    330,768.96/456,495 = 194,845.68/x
  3. Step 3: Cross multiply
    330,768.96x = 456,495 × 194,845.68
  4. Step 4: Simplify right side
    330,768.96x = 88,946,078,691.60
  5. Step 5: Solve for x
    x = 88,946,078,691.60/330,768.96
  6. Step 6: Final answer
    x = 268,906.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.