Finding the Fourth Proportional to 212,338.95, 318,664.05 and 156,329.99
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Solution
The fourth proportional to 212,338.95, 318,664.05 and 156,329.99 is: 234,609.55
Step by Step Solution
- Step 1: Write the proportion equation
212,338.95 : 318,664.05 = 156,329.99 : x - Step 2: Convert to fraction form
212,338.95/318,664.05 = 156,329.99/x - Step 3: Cross multiply
212,338.95x = 318,664.05 × 156,329.99 - Step 4: Simplify right side
212,338.95x = 49,816,746,156.54 - Step 5: Solve for x
x = 49,816,746,156.54/212,338.95 - Step 6: Final answer
x = 234,609.55
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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.