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Finding the Fourth Proportional to 379,321.76, 569,339.76 and 192,467.36

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Solution

The fourth proportional to 379,321.76, 569,339.76 and 192,467.36 is: 288,882.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,321.76 : 569,339.76 = 192,467.36 : x
  2. Step 2: Convert to fraction form
    379,321.76/569,339.76 = 192,467.36/x
  3. Step 3: Cross multiply
    379,321.76x = 569,339.76 × 192,467.36
  4. Step 4: Simplify right side
    379,321.76x = 109,579,320,550.23
  5. Step 5: Solve for x
    x = 109,579,320,550.23/379,321.76
  6. Step 6: Final answer
    x = 288,882.24

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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.