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Finding the Fourth Proportional to 253,293.15, 379,440.44 and 205,961.67

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Solution

The fourth proportional to 253,293.15, 379,440.44 and 205,961.67 is: 308,536.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,293.15 : 379,440.44 = 205,961.67 : x
  2. Step 2: Convert to fraction form
    253,293.15/379,440.44 = 205,961.67/x
  3. Step 3: Cross multiply
    253,293.15x = 379,440.44 × 205,961.67
  4. Step 4: Simplify right side
    253,293.15x = 78,150,186,687.93
  5. Step 5: Solve for x
    x = 78,150,186,687.93/253,293.15
  6. Step 6: Final answer
    x = 308,536.52

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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.