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Finding the Fourth Proportional to 355,107.78, 490,026.92 and 193,930.13

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Solution

The fourth proportional to 355,107.78, 490,026.92 and 193,930.13 is: 267,611.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,107.78 : 490,026.92 = 193,930.13 : x
  2. Step 2: Convert to fraction form
    355,107.78/490,026.92 = 193,930.13/x
  3. Step 3: Cross multiply
    355,107.78x = 490,026.92 × 193,930.13
  4. Step 4: Simplify right side
    355,107.78x = 95,030,984,554.52
  5. Step 5: Solve for x
    x = 95,030,984,554.52/355,107.78
  6. Step 6: Final answer
    x = 267,611.67

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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.