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Finding the Fourth Proportional to 305,846.80, 458,770.20 and 199,558.60

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Solution

The fourth proportional to 305,846.80, 458,770.20 and 199,558.60 is: 299,337.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,846.80 : 458,770.20 = 199,558.60 : x
  2. Step 2: Convert to fraction form
    305,846.80/458,770.20 = 199,558.60/x
  3. Step 3: Cross multiply
    305,846.80x = 458,770.20 × 199,558.60
  4. Step 4: Simplify right side
    305,846.80x = 91,551,538,833.72
  5. Step 5: Solve for x
    x = 91,551,538,833.72/305,846.80
  6. Step 6: Final answer
    x = 299,337.90

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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.