Finding the Fourth Proportional to 286,704.81, 395,662.79 and 157,653.07
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Solution
The fourth proportional to 286,704.81, 395,662.79 and 157,653.07 is: 217,566.82
Step by Step Solution
- Step 1: Write the proportion equation
286,704.81 : 395,662.79 = 157,653.07 : x - Step 2: Convert to fraction form
286,704.81/395,662.79 = 157,653.07/x - Step 3: Cross multiply
286,704.81x = 395,662.79 × 157,653.07 - Step 4: Simplify right side
286,704.81x = 62,377,453,528.27 - Step 5: Solve for x
x = 62,377,453,528.27/286,704.81 - Step 6: Final answer
x = 217,566.82
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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.