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Finding the Fourth Proportional to 377,817.88, 521,251.75 and 214,379.74

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Solution

The fourth proportional to 377,817.88, 521,251.75 and 214,379.74 is: 295,766.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,817.88 : 521,251.75 = 214,379.74 : x
  2. Step 2: Convert to fraction form
    377,817.88/521,251.75 = 214,379.74/x
  3. Step 3: Cross multiply
    377,817.88x = 521,251.75 × 214,379.74
  4. Step 4: Simplify right side
    377,817.88x = 111,745,811,421.16
  5. Step 5: Solve for x
    x = 111,745,811,421.16/377,817.88
  6. Step 6: Final answer
    x = 295,766.34

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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.