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Finding the Fourth Proportional to 355,635.39, 490,766.88 and 194,486.97

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Solution

The fourth proportional to 355,635.39, 490,766.88 and 194,486.97 is: 268,386.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,635.39 : 490,766.88 = 194,486.97 : x
  2. Step 2: Convert to fraction form
    355,635.39/490,766.88 = 194,486.97/x
  3. Step 3: Cross multiply
    355,635.39x = 490,766.88 × 194,486.97
  4. Step 4: Simplify right side
    355,635.39x = 95,447,765,627.01
  5. Step 5: Solve for x
    x = 95,447,765,627.01/355,635.39
  6. Step 6: Final answer
    x = 268,386.58

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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.