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Finding the Fourth Proportional to 389,052.54, 536,896.59 and 219,286.67

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Solution

The fourth proportional to 389,052.54, 536,896.59 and 219,286.67 is: 302,617.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,052.54 : 536,896.59 = 219,286.67 : x
  2. Step 2: Convert to fraction form
    389,052.54/536,896.59 = 219,286.67/x
  3. Step 3: Cross multiply
    389,052.54x = 536,896.59 × 219,286.67
  4. Step 4: Simplify right side
    389,052.54x = 117,734,262,670.97
  5. Step 5: Solve for x
    x = 117,734,262,670.97/389,052.54
  6. Step 6: Final answer
    x = 302,617.90

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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.