Home / 328,988.20-492,704.70-223,234.60

Finding the Fourth Proportional to 328,988.20, 492,704.70 and 223,234.60

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Solution

The fourth proportional to 328,988.20, 492,704.70 and 223,234.60 is: 334,324.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,988.20 : 492,704.70 = 223,234.60 : x
  2. Step 2: Convert to fraction form
    328,988.20/492,704.70 = 223,234.60/x
  3. Step 3: Cross multiply
    328,988.20x = 492,704.70 × 223,234.60
  4. Step 4: Simplify right side
    328,988.20x = 109,988,736,622.62
  5. Step 5: Solve for x
    x = 109,988,736,622.62/328,988.20
  6. Step 6: Final answer
    x = 334,324.26

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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.