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Finding the Fourth Proportional to 197,107.79, 295,682.31 and 90,473.55

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Solution

The fourth proportional to 197,107.79, 295,682.31 and 90,473.55 is: 135,719.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,107.79 : 295,682.31 = 90,473.55 : x
  2. Step 2: Convert to fraction form
    197,107.79/295,682.31 = 90,473.55/x
  3. Step 3: Cross multiply
    197,107.79x = 295,682.31 × 90,473.55
  4. Step 4: Simplify right side
    197,107.79x = 26,751,428,257.90
  5. Step 5: Solve for x
    x = 26,751,428,257.90/197,107.79
  6. Step 6: Final answer
    x = 135,719.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.