Finding the Fourth Proportional to 380,622.12, 525,275.60 and 210,845.31
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Solution
The fourth proportional to 380,622.12, 525,275.60 and 210,845.31 is: 290,975.99
Step by Step Solution
- Step 1: Write the proportion equation
380,622.12 : 525,275.60 = 210,845.31 : x - Step 2: Convert to fraction form
380,622.12/525,275.60 = 210,845.31/x - Step 3: Cross multiply
380,622.12x = 525,275.60 × 210,845.31 - Step 4: Simplify right side
380,622.12x = 110,751,896,717.44 - Step 5: Solve for x
x = 110,751,896,717.44/380,622.12 - Step 6: Final answer
x = 290,975.99
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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.