Home / 863,136.30-1,294,704.45-223,438.80

Finding the Fourth Proportional to 863,136.30, 1,294,704.45 and 223,438.80

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Solution

The fourth proportional to 863,136.30, 1,294,704.45 and 223,438.80 is: 335,158.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,136.30 : 1,294,704.45 = 223,438.80 : x
  2. Step 2: Convert to fraction form
    863,136.30/1,294,704.45 = 223,438.80/x
  3. Step 3: Cross multiply
    863,136.30x = 1,294,704.45 × 223,438.80
  4. Step 4: Simplify right side
    863,136.30x = 289,287,208,662.66
  5. Step 5: Solve for x
    x = 289,287,208,662.66/863,136.30
  6. Step 6: Final answer
    x = 335,158.20

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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.