Finding the Fourth Proportional to 369,109.28, 509,370.68 and 199,343.44
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Solution
The fourth proportional to 369,109.28, 509,370.68 and 199,343.44 is: 275,093.88
Step by Step Solution
- Step 1: Write the proportion equation
369,109.28 : 509,370.68 = 199,343.44 : x - Step 2: Convert to fraction form
369,109.28/509,370.68 = 199,343.44/x - Step 3: Cross multiply
369,109.28x = 509,370.68 × 199,343.44 - Step 4: Simplify right side
369,109.28x = 101,539,703,586.34 - Step 5: Solve for x
x = 101,539,703,586.34/369,109.28 - Step 6: Final answer
x = 275,093.88
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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.