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Finding the Fourth Proportional to 303,964.71, 419,458.23 and 167,991.63

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Solution

The fourth proportional to 303,964.71, 419,458.23 and 167,991.63 is: 231,821.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,964.71 : 419,458.23 = 167,991.63 : x
  2. Step 2: Convert to fraction form
    303,964.71/419,458.23 = 167,991.63/x
  3. Step 3: Cross multiply
    303,964.71x = 419,458.23 × 167,991.63
  4. Step 4: Simplify right side
    303,964.71x = 70,465,471,774.61
  5. Step 5: Solve for x
    x = 70,465,471,774.61/303,964.71
  6. Step 6: Final answer
    x = 231,821.23

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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.