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Finding the Fourth Proportional to 378,591.51, 567,503.87 and 245,556.21

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Solution

The fourth proportional to 378,591.51, 567,503.87 and 245,556.21 is: 368,085.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,591.51 : 567,503.87 = 245,556.21 : x
  2. Step 2: Convert to fraction form
    378,591.51/567,503.87 = 245,556.21/x
  3. Step 3: Cross multiply
    378,591.51x = 567,503.87 × 245,556.21
  4. Step 4: Simplify right side
    378,591.51x = 139,354,098,249.75
  5. Step 5: Solve for x
    x = 139,354,098,249.75/378,591.51
  6. Step 6: Final answer
    x = 368,085.64

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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.