Finding the Fourth Proportional to 215,845.80, 323,768.70 and 137,113.80
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Solution
The fourth proportional to 215,845.80, 323,768.70 and 137,113.80 is: 205,670.70
Step by Step Solution
- Step 1: Write the proportion equation
215,845.80 : 323,768.70 = 137,113.80 : x - Step 2: Convert to fraction form
215,845.80/323,768.70 = 137,113.80/x - Step 3: Cross multiply
215,845.80x = 323,768.70 × 137,113.80 - Step 4: Simplify right side
215,845.80x = 44,393,156,778.06 - Step 5: Solve for x
x = 44,393,156,778.06/215,845.80 - Step 6: Final answer
x = 205,670.70
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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.