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Finding the Fourth Proportional to 378,350.80, 567,526.20 and 331,694.80

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Solution

The fourth proportional to 378,350.80, 567,526.20 and 331,694.80 is: 497,542.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,350.80 : 567,526.20 = 331,694.80 : x
  2. Step 2: Convert to fraction form
    378,350.80/567,526.20 = 331,694.80/x
  3. Step 3: Cross multiply
    378,350.80x = 567,526.20 × 331,694.80
  4. Step 4: Simplify right side
    378,350.80x = 188,245,489,403.76
  5. Step 5: Solve for x
    x = 188,245,489,403.76/378,350.80
  6. Step 6: Final answer
    x = 497,542.20

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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.