Finding the Fourth Proportional to 212,772.93, 319,170.33 and 55,002.75
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Solution
The fourth proportional to 212,772.93, 319,170.33 and 55,002.75 is: 82,506.95
Step by Step Solution
- Step 1: Write the proportion equation
212,772.93 : 319,170.33 = 55,002.75 : x - Step 2: Convert to fraction form
212,772.93/319,170.33 = 55,002.75/x - Step 3: Cross multiply
212,772.93x = 319,170.33 × 55,002.75 - Step 4: Simplify right side
212,772.93x = 17,555,245,868.41 - Step 5: Solve for x
x = 17,555,245,868.41/212,772.93 - Step 6: Final answer
x = 82,506.95
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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.