Finding the Fourth Proportional to 251,914.48, 347,626.17 and 138,737.23
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Solution
The fourth proportional to 251,914.48, 347,626.17 and 138,737.23 is: 191,448.67
Step by Step Solution
- Step 1: Write the proportion equation
251,914.48 : 347,626.17 = 138,737.23 : x - Step 2: Convert to fraction form
251,914.48/347,626.17 = 138,737.23/x - Step 3: Cross multiply
251,914.48x = 347,626.17 × 138,737.23 - Step 4: Simplify right side
251,914.48x = 48,228,691,032.24 - Step 5: Solve for x
x = 48,228,691,032.24/251,914.48 - Step 6: Final answer
x = 191,448.67
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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.