Finding the Fourth Proportional to 212,776.93, 319,176.33 and 55,006.75
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Solution
The fourth proportional to 212,776.93, 319,176.33 and 55,006.75 is: 82,512.95
Step by Step Solution
- Step 1: Write the proportion equation
212,776.93 : 319,176.33 = 55,006.75 : x - Step 2: Convert to fraction form
212,776.93/319,176.33 = 55,006.75/x - Step 3: Cross multiply
212,776.93x = 319,176.33 × 55,006.75 - Step 4: Simplify right side
212,776.93x = 17,556,852,590.23 - Step 5: Solve for x
x = 17,556,852,590.23/212,776.93 - Step 6: Final answer
x = 82,512.95
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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.