Finding the Fourth Proportional to 319,879.33, 440,907.17 and 226,775.99
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Solution
The fourth proportional to 319,879.33, 440,907.17 and 226,775.99 is: 312,577.75
Step by Step Solution
- Step 1: Write the proportion equation
319,879.33 : 440,907.17 = 226,775.99 : x - Step 2: Convert to fraction form
319,879.33/440,907.17 = 226,775.99/x - Step 3: Cross multiply
319,879.33x = 440,907.17 × 226,775.99 - Step 4: Simplify right side
319,879.33x = 99,987,159,943.24 - Step 5: Solve for x
x = 99,987,159,943.24/319,879.33 - Step 6: Final answer
x = 312,577.75
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.