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Finding the Fourth Proportional to 199,372.66, 298,893.53 and 79,355.57

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Solution

The fourth proportional to 199,372.66, 298,893.53 and 79,355.57 is: 118,967.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,372.66 : 298,893.53 = 79,355.57 : x
  2. Step 2: Convert to fraction form
    199,372.66/298,893.53 = 79,355.57/x
  3. Step 3: Cross multiply
    199,372.66x = 298,893.53 × 79,355.57
  4. Step 4: Simplify right side
    199,372.66x = 23,718,865,146.38
  5. Step 5: Solve for x
    x = 23,718,865,146.38/199,372.66
  6. Step 6: Final answer
    x = 118,967.49

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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.