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Finding the Fourth Proportional to 378,208.80, 567,313.20 and 341,344.80

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Solution

The fourth proportional to 378,208.80, 567,313.20 and 341,344.80 is: 512,017.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,208.80 : 567,313.20 = 341,344.80 : x
  2. Step 2: Convert to fraction form
    378,208.80/567,313.20 = 341,344.80/x
  3. Step 3: Cross multiply
    378,208.80x = 567,313.20 × 341,344.80
  4. Step 4: Simplify right side
    378,208.80x = 193,649,410,791.36
  5. Step 5: Solve for x
    x = 193,649,410,791.36/378,208.80
  6. Step 6: Final answer
    x = 512,017.20

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1.5x scale

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.