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Finding the Fourth Proportional to 355,282.62, 490,291.29 and 194,137.67

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Solution

The fourth proportional to 355,282.62, 490,291.29 and 194,137.67 is: 267,910.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,282.62 : 490,291.29 = 194,137.67 : x
  2. Step 2: Convert to fraction form
    355,282.62/490,291.29 = 194,137.67/x
  3. Step 3: Cross multiply
    355,282.62x = 490,291.29 × 194,137.67
  4. Step 4: Simplify right side
    355,282.62x = 95,184,006,210.44
  5. Step 5: Solve for x
    x = 95,184,006,210.44/355,282.62
  6. Step 6: Final answer
    x = 267,910.67

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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.