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Finding the Fourth Proportional to 303,352.81, 418,778.44 and 188,668.43

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Solution

The fourth proportional to 303,352.81, 418,778.44 and 188,668.43 is: 260,456.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,352.81 : 418,778.44 = 188,668.43 : x
  2. Step 2: Convert to fraction form
    303,352.81/418,778.44 = 188,668.43/x
  3. Step 3: Cross multiply
    303,352.81x = 418,778.44 × 188,668.43
  4. Step 4: Simplify right side
    303,352.81x = 79,010,268,698.76
  5. Step 5: Solve for x
    x = 79,010,268,698.76/303,352.81
  6. Step 6: Final answer
    x = 260,456.69

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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.