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Finding the Fourth Proportional to 372,239.75, 513,736.44 and 219,270.03

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Solution

The fourth proportional to 372,239.75, 513,736.44 and 219,270.03 is: 302,619.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,239.75 : 513,736.44 = 219,270.03 : x
  2. Step 2: Convert to fraction form
    372,239.75/513,736.44 = 219,270.03/x
  3. Step 3: Cross multiply
    372,239.75x = 513,736.44 × 219,270.03
  4. Step 4: Simplify right side
    372,239.75x = 112,647,004,610.89
  5. Step 5: Solve for x
    x = 112,647,004,610.89/372,239.75
  6. Step 6: Final answer
    x = 302,619.50

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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.