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Finding the Fourth Proportional to 383,234.46, 528,879.87 and 213,468.66

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Solution

The fourth proportional to 383,234.46, 528,879.87 and 213,468.66 is: 294,595.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,234.46 : 528,879.87 = 213,468.66 : x
  2. Step 2: Convert to fraction form
    383,234.46/528,879.87 = 213,468.66/x
  3. Step 3: Cross multiply
    383,234.46x = 528,879.87 × 213,468.66
  4. Step 4: Simplify right side
    383,234.46x = 112,899,277,149.87
  5. Step 5: Solve for x
    x = 112,899,277,149.87/383,234.46
  6. Step 6: Final answer
    x = 294,595.84

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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.