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Finding the Fourth Proportional to 328,995.03, 494,191.74 and 309,797.97

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Solution

The fourth proportional to 328,995.03, 494,191.74 and 309,797.97 is: 465,355.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,995.03 : 494,191.74 = 309,797.97 : x
  2. Step 2: Convert to fraction form
    328,995.03/494,191.74 = 309,797.97/x
  3. Step 3: Cross multiply
    328,995.03x = 494,191.74 × 309,797.97
  4. Step 4: Simplify right side
    328,995.03x = 153,099,597,842.77
  5. Step 5: Solve for x
    x = 153,099,597,842.77/328,995.03
  6. Step 6: Final answer
    x = 465,355.35

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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.