Finding the Fourth Proportional to 251,838.24, 347,537.16 and 138,661.26
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Solution
The fourth proportional to 251,838.24, 347,537.16 and 138,661.26 is: 191,352.75
Step by Step Solution
- Step 1: Write the proportion equation
251,838.24 : 347,537.16 = 138,661.26 : x - Step 2: Convert to fraction form
251,838.24/347,537.16 = 138,661.26/x - Step 3: Cross multiply
251,838.24x = 347,537.16 × 138,661.26 - Step 4: Simplify right side
251,838.24x = 48,189,940,502.42 - Step 5: Solve for x
x = 48,189,940,502.42/251,838.24 - Step 6: Final answer
x = 191,352.75
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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.