Finding the Fourth Proportional to 286,618.23, 395,523.45 and 159,291.09
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Solution
The fourth proportional to 286,618.23, 395,523.45 and 159,291.09 is: 219,816.31
Step by Step Solution
- Step 1: Write the proportion equation
286,618.23 : 395,523.45 = 159,291.09 : x - Step 2: Convert to fraction form
286,618.23/395,523.45 = 159,291.09/x - Step 3: Cross multiply
286,618.23x = 395,523.45 × 159,291.09 - Step 4: Simplify right side
286,618.23x = 63,003,361,471.06 - Step 5: Solve for x
x = 63,003,361,471.06/286,618.23 - Step 6: Final answer
x = 219,816.31
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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.