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Finding the Fourth Proportional to 192,559.10, 288,980.60 and 91,357.56

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Solution

The fourth proportional to 192,559.10, 288,980.60 and 91,357.56 is: 137,103.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,559.10 : 288,980.60 = 91,357.56 : x
  2. Step 2: Convert to fraction form
    192,559.10/288,980.60 = 91,357.56/x
  3. Step 3: Cross multiply
    192,559.10x = 288,980.60 × 91,357.56
  4. Step 4: Simplify right side
    192,559.10x = 26,400,562,046.55
  5. Step 5: Solve for x
    x = 26,400,562,046.55/192,559.10
  6. Step 6: Final answer
    x = 137,103.69

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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.