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Finding the Fourth Proportional to 361,944.55, 499,496.83 and 218,676.92

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Solution

The fourth proportional to 361,944.55, 499,496.83 and 218,676.92 is: 301,782.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,944.55 : 499,496.83 = 218,676.92 : x
  2. Step 2: Convert to fraction form
    361,944.55/499,496.83 = 218,676.92/x
  3. Step 3: Cross multiply
    361,944.55x = 499,496.83 × 218,676.92
  4. Step 4: Simplify right side
    361,944.55x = 109,228,425,289.99
  5. Step 5: Solve for x
    x = 109,228,425,289.99/361,944.55
  6. Step 6: Final answer
    x = 301,782.21

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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.