Home / 320,961.42-442,941.96-193,634.28

Finding the Fourth Proportional to 320,961.42, 442,941.96 and 193,634.28

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Solution

The fourth proportional to 320,961.42, 442,941.96 and 193,634.28 is: 267,224.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,961.42 : 442,941.96 = 193,634.28 : x
  2. Step 2: Convert to fraction form
    320,961.42/442,941.96 = 193,634.28/x
  3. Step 3: Cross multiply
    320,961.42x = 442,941.96 × 193,634.28
  4. Step 4: Simplify right side
    320,961.42x = 85,768,747,506.39
  5. Step 5: Solve for x
    x = 85,768,747,506.39/320,961.42
  6. Step 6: Final answer
    x = 267,224.48

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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.