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Finding the Fourth Proportional to 359,498.87, 496,288.23 and 223,576.61

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Solution

The fourth proportional to 359,498.87, 496,288.23 and 223,576.61 is: 308,647.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,498.87 : 496,288.23 = 223,576.61 : x
  2. Step 2: Convert to fraction form
    359,498.87/496,288.23 = 223,576.61/x
  3. Step 3: Cross multiply
    359,498.87x = 496,288.23 × 223,576.61
  4. Step 4: Simplify right side
    359,498.87x = 110,958,440,046.30
  5. Step 5: Solve for x
    x = 110,958,440,046.30/359,498.87
  6. Step 6: Final answer
    x = 308,647.53

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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.