Finding the Fourth Proportional to 253,558.12, 349,933.68 and 140,380.87
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Solution
The fourth proportional to 253,558.12, 349,933.68 and 140,380.87 is: 193,738.59
Step by Step Solution
- Step 1: Write the proportion equation
253,558.12 : 349,933.68 = 140,380.87 : x - Step 2: Convert to fraction form
253,558.12/349,933.68 = 140,380.87/x - Step 3: Cross multiply
253,558.12x = 349,933.68 × 140,380.87 - Step 4: Simplify right side
253,558.12x = 49,123,991,989.13 - Step 5: Solve for x
x = 49,123,991,989.13/253,558.12 - Step 6: Final answer
x = 193,738.59
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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.