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Finding the Fourth Proportional to 298,099, 411,381.94 and 162,135.96

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Solution

The fourth proportional to 298,099, 411,381.94 and 162,135.96 is: 223,750.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,099 : 411,381.94 = 162,135.96 : x
  2. Step 2: Convert to fraction form
    298,099/411,381.94 = 162,135.96/x
  3. Step 3: Cross multiply
    298,099x = 411,381.94 × 162,135.96
  4. Step 4: Simplify right side
    298,099x = 66,699,805,768.56
  5. Step 5: Solve for x
    x = 66,699,805,768.56/298,099
  6. Step 6: Final answer
    x = 223,750.52

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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.