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Finding the Fourth Proportional to 451,685.21, 677,414.39 and 185,519.21

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Solution

The fourth proportional to 451,685.21, 677,414.39 and 185,519.21 is: 278,232.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,685.21 : 677,414.39 = 185,519.21 : x
  2. Step 2: Convert to fraction form
    451,685.21/677,414.39 = 185,519.21/x
  3. Step 3: Cross multiply
    451,685.21x = 677,414.39 × 185,519.21
  4. Step 4: Simplify right side
    451,685.21x = 125,673,378,160.76
  5. Step 5: Solve for x
    x = 125,673,378,160.76/451,685.21
  6. Step 6: Final answer
    x = 278,232.22

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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.