Finding the Fourth Proportional to 326,611.05, 489,916.62 and 101,990.72
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Solution
The fourth proportional to 326,611.05, 489,916.62 and 101,990.72 is: 152,986.09
Step by Step Solution
- Step 1: Write the proportion equation
326,611.05 : 489,916.62 = 101,990.72 : x - Step 2: Convert to fraction form
326,611.05/489,916.62 = 101,990.72/x - Step 3: Cross multiply
326,611.05x = 489,916.62 × 101,990.72 - Step 4: Simplify right side
326,611.05x = 49,966,946,364.18 - Step 5: Solve for x
x = 49,966,946,364.18/326,611.05 - Step 6: Final answer
x = 152,986.09
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.