Finding the Fourth Proportional to 212,423.70, 318,635.55 and 202,055.70
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Solution
The fourth proportional to 212,423.70, 318,635.55 and 202,055.70 is: 303,083.55
Step by Step Solution
- Step 1: Write the proportion equation
212,423.70 : 318,635.55 = 202,055.70 : x - Step 2: Convert to fraction form
212,423.70/318,635.55 = 202,055.70/x - Step 3: Cross multiply
212,423.70x = 318,635.55 × 202,055.70 - Step 4: Simplify right side
212,423.70x = 64,382,129,100.14 - Step 5: Solve for x
x = 64,382,129,100.14/212,423.70 - Step 6: Final answer
x = 303,083.55
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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.