Finding the Fourth Proportional to 220,556.87, 304,367.85 and 122,455.09
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Solution
The fourth proportional to 220,556.87, 304,367.85 and 122,455.09 is: 168,987.67
Step by Step Solution
- Step 1: Write the proportion equation
220,556.87 : 304,367.85 = 122,455.09 : x - Step 2: Convert to fraction form
220,556.87/304,367.85 = 122,455.09/x - Step 3: Cross multiply
220,556.87x = 304,367.85 × 122,455.09 - Step 4: Simplify right side
220,556.87x = 37,271,391,703.94 - Step 5: Solve for x
x = 37,271,391,703.94/220,556.87 - Step 6: Final answer
x = 168,987.67
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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.