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Finding the Fourth Proportional to 838,239.72, 1,257,571.79 and 239,203

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Solution

The fourth proportional to 838,239.72, 1,257,571.79 and 239,203 is: 358,865.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,239.72 : 1,257,571.79 = 239,203 : x
  2. Step 2: Convert to fraction form
    838,239.72/1,257,571.79 = 239,203/x
  3. Step 3: Cross multiply
    838,239.72x = 1,257,571.79 × 239,203
  4. Step 4: Simplify right side
    838,239.72x = 300,814,944,883.37
  5. Step 5: Solve for x
    x = 300,814,944,883.37/838,239.72
  6. Step 6: Final answer
    x = 358,865.06

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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.