Home / 251,945.66-347,684.94-138,768.41

Finding the Fourth Proportional to 251,945.66, 347,684.94 and 138,768.41

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Solution

The fourth proportional to 251,945.66, 347,684.94 and 138,768.41 is: 191,500.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,945.66 : 347,684.94 = 138,768.41 : x
  2. Step 2: Convert to fraction form
    251,945.66/347,684.94 = 138,768.41/x
  3. Step 3: Cross multiply
    251,945.66x = 347,684.94 × 138,768.41
  4. Step 4: Simplify right side
    251,945.66x = 48,247,686,304.75
  5. Step 5: Solve for x
    x = 48,247,686,304.75/251,945.66
  6. Step 6: Final answer
    x = 191,500.37

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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.