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Finding the Fourth Proportional to 393,555.96, 543,105.42 and 214,707.96

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Solution

The fourth proportional to 393,555.96, 543,105.42 and 214,707.96 is: 296,296.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,555.96 : 543,105.42 = 214,707.96 : x
  2. Step 2: Convert to fraction form
    393,555.96/543,105.42 = 214,707.96/x
  3. Step 3: Cross multiply
    393,555.96x = 543,105.42 × 214,707.96
  4. Step 4: Simplify right side
    393,555.96x = 116,609,056,793.14
  5. Step 5: Solve for x
    x = 116,609,056,793.14/393,555.96
  6. Step 6: Final answer
    x = 296,296.00

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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.