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Finding the Fourth Proportional to 483,450.20, 667,256.76 and 308,908.76

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Solution

The fourth proportional to 483,450.20, 667,256.76 and 308,908.76 is: 426,355.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,450.20 : 667,256.76 = 308,908.76 : x
  2. Step 2: Convert to fraction form
    483,450.20/667,256.76 = 308,908.76/x
  3. Step 3: Cross multiply
    483,450.20x = 667,256.76 × 308,908.76
  4. Step 4: Simplify right side
    483,450.20x = 206,121,458,333.22
  5. Step 5: Solve for x
    x = 206,121,458,333.22/483,450.20
  6. Step 6: Final answer
    x = 426,355.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.