Finding the Fourth Proportional to 212,775.93, 319,174.83 and 55,005.75
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Solution
The fourth proportional to 212,775.93, 319,174.83 and 55,005.75 is: 82,511.45
Step by Step Solution
- Step 1: Write the proportion equation
212,775.93 : 319,174.83 = 55,005.75 : x - Step 2: Convert to fraction form
212,775.93/319,174.83 = 55,005.75/x - Step 3: Cross multiply
212,775.93x = 319,174.83 × 55,005.75 - Step 4: Simplify right side
212,775.93x = 17,556,450,905.27 - Step 5: Solve for x
x = 17,556,450,905.27/212,775.93 - Step 6: Final answer
x = 82,511.45
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1.5x scale
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.