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Finding the Fourth Proportional to 328,958.80, 493,635.03 and 302,189.92

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Solution

The fourth proportional to 328,958.80, 493,635.03 and 302,189.92 is: 453,465.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,958.80 : 493,635.03 = 302,189.92 : x
  2. Step 2: Convert to fraction form
    328,958.80/493,635.03 = 302,189.92/x
  3. Step 3: Cross multiply
    328,958.80x = 493,635.03 × 302,189.92
  4. Step 4: Simplify right side
    328,958.80x = 149,171,530,224.90
  5. Step 5: Solve for x
    x = 149,171,530,224.90/328,958.80
  6. Step 6: Final answer
    x = 453,465.69

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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.