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Finding the Fourth Proportional to 294,229.60, 440,890.80 and 218,996.80

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Solution

The fourth proportional to 294,229.60, 440,890.80 and 218,996.80 is: 328,157.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,229.60 : 440,890.80 = 218,996.80 : x
  2. Step 2: Convert to fraction form
    294,229.60/440,890.80 = 218,996.80/x
  3. Step 3: Cross multiply
    294,229.60x = 440,890.80 × 218,996.80
  4. Step 4: Simplify right side
    294,229.60x = 96,553,674,349.44
  5. Step 5: Solve for x
    x = 96,553,674,349.44/294,229.60
  6. Step 6: Final answer
    x = 328,157.58

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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.