Home / 275,090.73-379,186.57-216,852.50

Finding the Fourth Proportional to 275,090.73, 379,186.57 and 216,852.50

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Solution

The fourth proportional to 275,090.73, 379,186.57 and 216,852.50 is: 298,910.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,090.73 : 379,186.57 = 216,852.50 : x
  2. Step 2: Convert to fraction form
    275,090.73/379,186.57 = 216,852.50/x
  3. Step 3: Cross multiply
    275,090.73x = 379,186.57 × 216,852.50
  4. Step 4: Simplify right side
    275,090.73x = 82,227,555,365.79
  5. Step 5: Solve for x
    x = 82,227,555,365.79/275,090.73
  6. Step 6: Final answer
    x = 298,910.67

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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.