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Finding the Fourth Proportional to 294,019.60, 440,575.80 and 218,786.80

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Solution

The fourth proportional to 294,019.60, 440,575.80 and 218,786.80 is: 327,842.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,019.60 : 440,575.80 = 218,786.80 : x
  2. Step 2: Convert to fraction form
    294,019.60/440,575.80 = 218,786.80/x
  3. Step 3: Cross multiply
    294,019.60x = 440,575.80 × 218,786.80
  4. Step 4: Simplify right side
    294,019.60x = 96,392,169,439.44
  5. Step 5: Solve for x
    x = 96,392,169,439.44/294,019.60
  6. Step 6: Final answer
    x = 327,842.67

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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.