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Finding the Fourth Proportional to 359,899.44, 496,722 and 209,083.92

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Solution

The fourth proportional to 359,899.44, 496,722 and 209,083.92 is: 288,571.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,899.44 : 496,722 = 209,083.92 : x
  2. Step 2: Convert to fraction form
    359,899.44/496,722 = 209,083.92/x
  3. Step 3: Cross multiply
    359,899.44x = 496,722 × 209,083.92
  4. Step 4: Simplify right side
    359,899.44x = 103,856,582,910.24
  5. Step 5: Solve for x
    x = 103,856,582,910.24/359,899.44
  6. Step 6: Final answer
    x = 288,571.12

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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.