Finding the Fourth Proportional to 369,186.75, 509,477.94 and 199,420.92
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Solution
The fourth proportional to 369,186.75, 509,477.94 and 199,420.92 is: 275,200.99
Step by Step Solution
- Step 1: Write the proportion equation
369,186.75 : 509,477.94 = 199,420.92 : x - Step 2: Convert to fraction form
369,186.75/509,477.94 = 199,420.92/x - Step 3: Cross multiply
369,186.75x = 509,477.94 × 199,420.92 - Step 4: Simplify right side
369,186.75x = 101,600,559,514.51 - Step 5: Solve for x
x = 101,600,559,514.51/369,186.75 - Step 6: Final answer
x = 275,200.99
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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.