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Finding the Fourth Proportional to 378,661.68, 567,609.24 and 245,626.48

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Solution

The fourth proportional to 378,661.68, 567,609.24 and 245,626.48 is: 368,191.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,661.68 : 567,609.24 = 245,626.48 : x
  2. Step 2: Convert to fraction form
    378,661.68/567,609.24 = 245,626.48/x
  3. Step 3: Cross multiply
    378,661.68x = 567,609.24 × 245,626.48
  4. Step 4: Simplify right side
    378,661.68x = 139,419,859,636.68
  5. Step 5: Solve for x
    x = 139,419,859,636.68/378,661.68
  6. Step 6: Final answer
    x = 368,191.10

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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.