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Finding the Fourth Proportional to 450,379.86, 675,188.25 and 197,468.70

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Solution

The fourth proportional to 450,379.86, 675,188.25 and 197,468.70 is: 296,035.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,379.86 : 675,188.25 = 197,468.70 : x
  2. Step 2: Convert to fraction form
    450,379.86/675,188.25 = 197,468.70/x
  3. Step 3: Cross multiply
    450,379.86x = 675,188.25 × 197,468.70
  4. Step 4: Simplify right side
    450,379.86x = 133,328,545,982.78
  5. Step 5: Solve for x
    x = 133,328,545,982.78/450,379.86
  6. Step 6: Final answer
    x = 296,035.76

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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.