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Finding the Fourth Proportional to 352,747.50, 486,604.96 and 223,457.88

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Solution

The fourth proportional to 352,747.50, 486,604.96 and 223,457.88 is: 308,253.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,747.50 : 486,604.96 = 223,457.88 : x
  2. Step 2: Convert to fraction form
    352,747.50/486,604.96 = 223,457.88/x
  3. Step 3: Cross multiply
    352,747.50x = 486,604.96 × 223,457.88
  4. Step 4: Simplify right side
    352,747.50x = 108,735,712,759.09
  5. Step 5: Solve for x
    x = 108,735,712,759.09/352,747.50
  6. Step 6: Final answer
    x = 308,253.67

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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.