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Finding the Fourth Proportional to 439,187.76, 606,012.07 and 248,131.44

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Solution

The fourth proportional to 439,187.76, 606,012.07 and 248,131.44 is: 342,383.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,187.76 : 606,012.07 = 248,131.44 : x
  2. Step 2: Convert to fraction form
    439,187.76/606,012.07 = 248,131.44/x
  3. Step 3: Cross multiply
    439,187.76x = 606,012.07 × 248,131.44
  4. Step 4: Simplify right side
    439,187.76x = 150,370,647,586.48
  5. Step 5: Solve for x
    x = 150,370,647,586.48/439,187.76
  6. Step 6: Final answer
    x = 342,383.51

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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.