Home / 253,911.24-380,874.69-76,419.54

Finding the Fourth Proportional to 253,911.24, 380,874.69 and 76,419.54

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Solution

The fourth proportional to 253,911.24, 380,874.69 and 76,419.54 is: 114,631.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,911.24 : 380,874.69 = 76,419.54 : x
  2. Step 2: Convert to fraction form
    253,911.24/380,874.69 = 76,419.54/x
  3. Step 3: Cross multiply
    253,911.24x = 380,874.69 × 76,419.54
  4. Step 4: Simplify right side
    253,911.24x = 29,106,268,607.44
  5. Step 5: Solve for x
    x = 29,106,268,607.44/253,911.24
  6. Step 6: Final answer
    x = 114,631.67

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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.