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Finding the Fourth Proportional to 355,253.85, 490,241.97 and 194,109.48

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Solution

The fourth proportional to 355,253.85, 490,241.97 and 194,109.48 is: 267,866.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,253.85 : 490,241.97 = 194,109.48 : x
  2. Step 2: Convert to fraction form
    355,253.85/490,241.97 = 194,109.48/x
  3. Step 3: Cross multiply
    355,253.85x = 490,241.97 × 194,109.48
  4. Step 4: Simplify right side
    355,253.85x = 95,160,613,870.88
  5. Step 5: Solve for x
    x = 95,160,613,870.88/355,253.85
  6. Step 6: Final answer
    x = 267,866.52

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1.5x scale

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.