Home / 263,028.64-394,083.60-218,938.72

Finding the Fourth Proportional to 263,028.64, 394,083.60 and 218,938.72

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Solution

The fourth proportional to 263,028.64, 394,083.60 and 218,938.72 is: 328,025.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,028.64 : 394,083.60 = 218,938.72 : x
  2. Step 2: Convert to fraction form
    263,028.64/394,083.60 = 218,938.72/x
  3. Step 3: Cross multiply
    263,028.64x = 394,083.60 × 218,938.72
  4. Step 4: Simplify right side
    263,028.64x = 86,280,158,956.99
  5. Step 5: Solve for x
    x = 86,280,158,956.99/263,028.64
  6. Step 6: Final answer
    x = 328,025.72

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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.