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Finding the Fourth Proportional to 245,842.36, 338,893.86 and 200,450.68

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Solution

The fourth proportional to 245,842.36, 338,893.86 and 200,450.68 is: 276,321.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,842.36 : 338,893.86 = 200,450.68 : x
  2. Step 2: Convert to fraction form
    245,842.36/338,893.86 = 200,450.68/x
  3. Step 3: Cross multiply
    245,842.36x = 338,893.86 × 200,450.68
  4. Step 4: Simplify right side
    245,842.36x = 67,931,504,684.82
  5. Step 5: Solve for x
    x = 67,931,504,684.82/245,842.36
  6. Step 6: Final answer
    x = 276,321.40

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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.