Home / 320,942.64-442,916.06-193,615.50

Finding the Fourth Proportional to 320,942.64, 442,916.06 and 193,615.50

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Solution

The fourth proportional to 320,942.64, 442,916.06 and 193,615.50 is: 267,198.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,942.64 : 442,916.06 = 193,615.50 : x
  2. Step 2: Convert to fraction form
    320,942.64/442,916.06 = 193,615.50/x
  3. Step 3: Cross multiply
    320,942.64x = 442,916.06 × 193,615.50
  4. Step 4: Simplify right side
    320,942.64x = 85,755,414,414.93
  5. Step 5: Solve for x
    x = 85,755,414,414.93/320,942.64
  6. Step 6: Final answer
    x = 267,198.57

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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.