Finding the Fourth Proportional to 355,014.63, 489,916.96 and 193,869.18
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Solution
The fourth proportional to 355,014.63, 489,916.96 and 193,869.18 is: 267,537.70
Step by Step Solution
- Step 1: Write the proportion equation
355,014.63 : 489,916.96 = 193,869.18 : x - Step 2: Convert to fraction form
355,014.63/489,916.96 = 193,869.18/x - Step 3: Cross multiply
355,014.63x = 489,916.96 × 193,869.18 - Step 4: Simplify right side
355,014.63x = 94,979,798,818.62 - Step 5: Solve for x
x = 94,979,798,818.62/355,014.63 - Step 6: Final answer
x = 267,537.70
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.