Home / 229,178.21-343,771.63-79,423.38

Finding the Fourth Proportional to 229,178.21, 343,771.63 and 79,423.38

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Solution

The fourth proportional to 229,178.21, 343,771.63 and 79,423.38 is: 119,136.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,178.21 : 343,771.63 = 79,423.38 : x
  2. Step 2: Convert to fraction form
    229,178.21/343,771.63 = 79,423.38/x
  3. Step 3: Cross multiply
    229,178.21x = 343,771.63 × 79,423.38
  4. Step 4: Simplify right side
    229,178.21x = 27,303,504,604.15
  5. Step 5: Solve for x
    x = 27,303,504,604.15/229,178.21
  6. Step 6: Final answer
    x = 119,136.57

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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.