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Finding the Fourth Proportional to 298,379.89, 411,770.96 and 169,326.84

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Solution

The fourth proportional to 298,379.89, 411,770.96 and 169,326.84 is: 233,674.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,379.89 : 411,770.96 = 169,326.84 : x
  2. Step 2: Convert to fraction form
    298,379.89/411,770.96 = 169,326.84/x
  3. Step 3: Cross multiply
    298,379.89x = 411,770.96 × 169,326.84
  4. Step 4: Simplify right side
    298,379.89x = 69,723,875,460.57
  5. Step 5: Solve for x
    x = 69,723,875,460.57/298,379.89
  6. Step 6: Final answer
    x = 233,674.85

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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.