Home / 328,986.90-494,063.55-254,288.70

Finding the Fourth Proportional to 328,986.90, 494,063.55 and 254,288.70

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Solution

The fourth proportional to 328,986.90, 494,063.55 and 254,288.70 is: 381,883.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,986.90 : 494,063.55 = 254,288.70 : x
  2. Step 2: Convert to fraction form
    328,986.90/494,063.55 = 254,288.70/x
  3. Step 3: Cross multiply
    328,986.90x = 494,063.55 × 254,288.70
  4. Step 4: Simplify right side
    328,986.90x = 125,634,777,846.89
  5. Step 5: Solve for x
    x = 125,634,777,846.89/328,986.90
  6. Step 6: Final answer
    x = 381,883.83

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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.