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Finding the Fourth Proportional to 355,306.82, 490,302.59 and 194,163.12

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Solution

The fourth proportional to 355,306.82, 490,302.59 and 194,163.12 is: 267,933.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,306.82 : 490,302.59 = 194,163.12 : x
  2. Step 2: Convert to fraction form
    355,306.82/490,302.59 = 194,163.12/x
  3. Step 3: Cross multiply
    355,306.82x = 490,302.59 × 194,163.12
  4. Step 4: Simplify right side
    355,306.82x = 95,198,679,647.67
  5. Step 5: Solve for x
    x = 95,198,679,647.67/355,306.82
  6. Step 6: Final answer
    x = 267,933.73

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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.