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Finding the Fourth Proportional to 355,235.96, 490,219.90 and 194,087.57

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Solution

The fourth proportional to 355,235.96, 490,219.90 and 194,087.57 is: 267,837.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,235.96 : 490,219.90 = 194,087.57 : x
  2. Step 2: Convert to fraction form
    355,235.96/490,219.90 = 194,087.57/x
  3. Step 3: Cross multiply
    355,235.96x = 490,219.90 × 194,087.57
  4. Step 4: Simplify right side
    355,235.96x = 95,145,586,220.32
  5. Step 5: Solve for x
    x = 95,145,586,220.32/355,235.96
  6. Step 6: Final answer
    x = 267,837.71

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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.