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Finding the Fourth Proportional to 326,803.58, 490,284.18 and 113,540.45

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Solution

The fourth proportional to 326,803.58, 490,284.18 and 113,540.45 is: 170,338.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,803.58 : 490,284.18 = 113,540.45 : x
  2. Step 2: Convert to fraction form
    326,803.58/490,284.18 = 113,540.45/x
  3. Step 3: Cross multiply
    326,803.58x = 490,284.18 × 113,540.45
  4. Step 4: Simplify right side
    326,803.58x = 55,667,087,366.94
  5. Step 5: Solve for x
    x = 55,667,087,366.94/326,803.58
  6. Step 6: Final answer
    x = 170,338.06

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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.