Finding the Fourth Proportional to 282,556.14, 389,927.61 and 155,239.92
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Solution
The fourth proportional to 282,556.14, 389,927.61 and 155,239.92 is: 214,231.16
Step by Step Solution
- Step 1: Write the proportion equation
282,556.14 : 389,927.61 = 155,239.92 : x - Step 2: Convert to fraction form
282,556.14/389,927.61 = 155,239.92/x - Step 3: Cross multiply
282,556.14x = 389,927.61 × 155,239.92 - Step 4: Simplify right side
282,556.14x = 60,532,330,982.19 - Step 5: Solve for x
x = 60,532,330,982.19/282,556.14 - Step 6: Final answer
x = 214,231.16
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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.