Finding the Fourth Proportional to 253,323.21, 349,586.37 and 138,612.63
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Solution
The fourth proportional to 253,323.21, 349,586.37 and 138,612.63 is: 191,285.62
Step by Step Solution
- Step 1: Write the proportion equation
253,323.21 : 349,586.37 = 138,612.63 : x - Step 2: Convert to fraction form
253,323.21/349,586.37 = 138,612.63/x - Step 3: Cross multiply
253,323.21x = 349,586.37 × 138,612.63 - Step 4: Simplify right side
253,323.21x = 48,457,086,157.85 - Step 5: Solve for x
x = 48,457,086,157.85/253,323.21 - Step 6: Final answer
x = 191,285.62
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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.