Finding the Fourth Proportional to 228,785.72, 343,176.84 and 68,860.98
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Solution
The fourth proportional to 228,785.72, 343,176.84 and 68,860.98 is: 103,290.95
Step by Step Solution
- Step 1: Write the proportion equation
228,785.72 : 343,176.84 = 68,860.98 : x - Step 2: Convert to fraction form
228,785.72/343,176.84 = 68,860.98/x - Step 3: Cross multiply
228,785.72x = 343,176.84 × 68,860.98 - Step 4: Simplify right side
228,785.72x = 23,631,493,515.70 - Step 5: Solve for x
x = 23,631,493,515.70/228,785.72 - Step 6: Final answer
x = 103,290.95
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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.