Finding the Fourth Proportional to 355,403.10, 532,327.05 and 214,916.70
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Solution
The fourth proportional to 355,403.10, 532,327.05 and 214,916.70 is: 321,904.83
Step by Step Solution
- Step 1: Write the proportion equation
355,403.10 : 532,327.05 = 214,916.70 : x - Step 2: Convert to fraction form
355,403.10/532,327.05 = 214,916.70/x - Step 3: Cross multiply
355,403.10x = 532,327.05 × 214,916.70 - Step 4: Simplify right side
355,403.10x = 114,405,972,906.74 - Step 5: Solve for x
x = 114,405,972,906.74/355,403.10 - Step 6: Final answer
x = 321,904.83
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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.