Finding the Fourth Proportional to 226,619.60, 339,961.80 and 76,866.80
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Solution
The fourth proportional to 226,619.60, 339,961.80 and 76,866.80 is: 115,311.19
Step by Step Solution
- Step 1: Write the proportion equation
226,619.60 : 339,961.80 = 76,866.80 : x - Step 2: Convert to fraction form
226,619.60/339,961.80 = 76,866.80/x - Step 3: Cross multiply
226,619.60x = 339,961.80 × 76,866.80 - Step 4: Simplify right side
226,619.60x = 26,131,775,688.24 - Step 5: Solve for x
x = 26,131,775,688.24/226,619.60 - Step 6: Final answer
x = 115,311.19
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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.