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Finding the Fourth Proportional to 355,212.39, 490,200.15 and 194,077.42

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Solution

The fourth proportional to 355,212.39, 490,200.15 and 194,077.42 is: 267,830.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,212.39 : 490,200.15 = 194,077.42 : x
  2. Step 2: Convert to fraction form
    355,212.39/490,200.15 = 194,077.42/x
  3. Step 3: Cross multiply
    355,212.39x = 490,200.15 × 194,077.42
  4. Step 4: Simplify right side
    355,212.39x = 95,136,776,974.23
  5. Step 5: Solve for x
    x = 95,136,776,974.23/355,212.39
  6. Step 6: Final answer
    x = 267,830.69

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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.