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Finding the Fourth Proportional to 355,230.82, 490,212.74 and 194,082.40

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Solution

The fourth proportional to 355,230.82, 490,212.74 and 194,082.40 is: 267,830.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,230.82 : 490,212.74 = 194,082.40 : x
  2. Step 2: Convert to fraction form
    355,230.82/490,212.74 = 194,082.40/x
  3. Step 3: Cross multiply
    355,230.82x = 490,212.74 × 194,082.40
  4. Step 4: Simplify right side
    355,230.82x = 95,141,665,089.78
  5. Step 5: Solve for x
    x = 95,141,665,089.78/355,230.82
  6. Step 6: Final answer
    x = 267,830.55

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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.