Finding the Fourth Proportional to 371,640.24, 557,462.64 and 91,157.28
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Solution
The fourth proportional to 371,640.24, 557,462.64 and 91,157.28 is: 136,736.48
Step by Step Solution
- Step 1: Write the proportion equation
371,640.24 : 557,462.64 = 91,157.28 : x - Step 2: Convert to fraction form
371,640.24/557,462.64 = 91,157.28/x - Step 3: Cross multiply
371,640.24x = 557,462.64 × 91,157.28 - Step 4: Simplify right side
371,640.24x = 50,816,777,964.02 - Step 5: Solve for x
x = 50,816,777,964.02/371,640.24 - Step 6: Final answer
x = 136,736.48
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.