Home / 268,986.57-371,172.89-148,120.67

Finding the Fourth Proportional to 268,986.57, 371,172.89 and 148,120.67

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Solution

The fourth proportional to 268,986.57, 371,172.89 and 148,120.67 is: 204,390.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,986.57 : 371,172.89 = 148,120.67 : x
  2. Step 2: Convert to fraction form
    268,986.57/371,172.89 = 148,120.67/x
  3. Step 3: Cross multiply
    268,986.57x = 371,172.89 × 148,120.67
  4. Step 4: Simplify right side
    268,986.57x = 54,978,374,556.17
  5. Step 5: Solve for x
    x = 54,978,374,556.17/268,986.57
  6. Step 6: Final answer
    x = 204,390.78

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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.