Finding the Fourth Proportional to 226,421.88, 339,611.99 and 76,645.05
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Solution
The fourth proportional to 226,421.88, 339,611.99 and 76,645.05 is: 114,960.52
Step by Step Solution
- Step 1: Write the proportion equation
226,421.88 : 339,611.99 = 76,645.05 : x - Step 2: Convert to fraction form
226,421.88/339,611.99 = 76,645.05/x - Step 3: Cross multiply
226,421.88x = 339,611.99 × 76,645.05 - Step 4: Simplify right side
226,421.88x = 26,029,577,954.15 - Step 5: Solve for x
x = 26,029,577,954.15/226,421.88 - Step 6: Final answer
x = 114,960.52
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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.