Finding the Fourth Proportional to 211,556.75, 291,953.84 and 119,668.59
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Solution
The fourth proportional to 211,556.75, 291,953.84 and 119,668.59 is: 165,145.78
Step by Step Solution
- Step 1: Write the proportion equation
211,556.75 : 291,953.84 = 119,668.59 : x - Step 2: Convert to fraction form
211,556.75/291,953.84 = 119,668.59/x - Step 3: Cross multiply
211,556.75x = 291,953.84 × 119,668.59 - Step 4: Simplify right side
211,556.75x = 34,937,703,779.54 - Step 5: Solve for x
x = 34,937,703,779.54/211,556.75 - Step 6: Final answer
x = 165,145.78
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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.