Finding the Fourth Proportional to 286,659.63, 394,686.59 and 260,087.49
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Solution
The fourth proportional to 286,659.63, 394,686.59 and 260,087.49 is: 358,100.80
Step by Step Solution
- Step 1: Write the proportion equation
286,659.63 : 394,686.59 = 260,087.49 : x - Step 2: Convert to fraction form
286,659.63/394,686.59 = 260,087.49/x - Step 3: Cross multiply
286,659.63x = 394,686.59 × 260,087.49 - Step 4: Simplify right side
286,659.63x = 102,653,043,229.32 - Step 5: Solve for x
x = 102,653,043,229.32/286,659.63 - Step 6: Final answer
x = 358,100.80
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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.