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Finding the Fourth Proportional to 355,215.98, 490,205.10 and 194,081.03

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Solution

The fourth proportional to 355,215.98, 490,205.10 and 194,081.03 is: 267,835.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,215.98 : 490,205.10 = 194,081.03 : x
  2. Step 2: Convert to fraction form
    355,215.98/490,205.10 = 194,081.03/x
  3. Step 3: Cross multiply
    355,215.98x = 490,205.10 × 194,081.03
  4. Step 4: Simplify right side
    355,215.98x = 95,139,510,719.25
  5. Step 5: Solve for x
    x = 95,139,510,719.25/355,215.98
  6. Step 6: Final answer
    x = 267,835.67

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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.