Finding the Fourth Proportional to 251,828.19, 347,523.21 and 138,650.94
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Solution
The fourth proportional to 251,828.19, 347,523.21 and 138,650.94 is: 191,338.47
Step by Step Solution
- Step 1: Write the proportion equation
251,828.19 : 347,523.21 = 138,650.94 : x - Step 2: Convert to fraction form
251,828.19/347,523.21 = 138,650.94/x - Step 3: Cross multiply
251,828.19x = 347,523.21 × 138,650.94 - Step 4: Simplify right side
251,828.19x = 48,184,419,738.32 - Step 5: Solve for x
x = 48,184,419,738.32/251,828.19 - Step 6: Final answer
x = 191,338.47
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1.5x scale
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.