Finding the Fourth Proportional to 369,194.50, 509,488.68 and 199,428.63
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Solution
The fourth proportional to 369,194.50, 509,488.68 and 199,428.63 is: 275,211.66
Step by Step Solution
- Step 1: Write the proportion equation
369,194.50 : 509,488.68 = 199,428.63 : x - Step 2: Convert to fraction form
369,194.50/509,488.68 = 199,428.63/x - Step 3: Cross multiply
369,194.50x = 509,488.68 × 199,428.63 - Step 4: Simplify right side
369,194.50x = 101,606,629,452.91 - Step 5: Solve for x
x = 101,606,629,452.91/369,194.50 - Step 6: Final answer
x = 275,211.66
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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.