Finding the Fourth Proportional to 286,188.81, 394,920.79 and 158,854.38
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Solution
The fourth proportional to 286,188.81, 394,920.79 and 158,854.38 is: 219,208.07
Step by Step Solution
- Step 1: Write the proportion equation
286,188.81 : 394,920.79 = 158,854.38 : x - Step 2: Convert to fraction form
286,188.81/394,920.79 = 158,854.38/x - Step 3: Cross multiply
286,188.81x = 394,920.79 × 158,854.38 - Step 4: Simplify right side
286,188.81x = 62,734,897,244.56 - Step 5: Solve for x
x = 62,734,897,244.56/286,188.81 - Step 6: Final answer
x = 219,208.07
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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.