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Finding the Fourth Proportional to 361,419.20, 541,558.48 and 133,400.98

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Solution

The fourth proportional to 361,419.20, 541,558.48 and 133,400.98 is: 199,890.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,419.20 : 541,558.48 = 133,400.98 : x
  2. Step 2: Convert to fraction form
    361,419.20/541,558.48 = 133,400.98/x
  3. Step 3: Cross multiply
    361,419.20x = 541,558.48 × 133,400.98
  4. Step 4: Simplify right side
    361,419.20x = 72,244,433,308.86
  5. Step 5: Solve for x
    x = 72,244,433,308.86/361,419.20
  6. Step 6: Final answer
    x = 199,890.97

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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.