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Finding the Fourth Proportional to 326,997.29, 490,620.47 and 113,788.89

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Solution

The fourth proportional to 326,997.29, 490,620.47 and 113,788.89 is: 170,726.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,997.29 : 490,620.47 = 113,788.89 : x
  2. Step 2: Convert to fraction form
    326,997.29/490,620.47 = 113,788.89/x
  3. Step 3: Cross multiply
    326,997.29x = 490,620.47 × 113,788.89
  4. Step 4: Simplify right side
    326,997.29x = 55,827,158,123.63
  5. Step 5: Solve for x
    x = 55,827,158,123.63/326,997.29
  6. Step 6: Final answer
    x = 170,726.67

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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.