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Finding the Fourth Proportional to 323,991, 486,150.48 and 218,588.56

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Solution

The fourth proportional to 323,991, 486,150.48 and 218,588.56 is: 327,993.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,991 : 486,150.48 = 218,588.56 : x
  2. Step 2: Convert to fraction form
    323,991/486,150.48 = 218,588.56/x
  3. Step 3: Cross multiply
    323,991x = 486,150.48 × 218,588.56
  4. Step 4: Simplify right side
    323,991x = 106,266,933,366.51
  5. Step 5: Solve for x
    x = 106,266,933,366.51/323,991
  6. Step 6: Final answer
    x = 327,993.47

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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.