Finding the Fourth Proportional to 263,213.79, 363,235.02 and 142,355.07
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Solution
The fourth proportional to 263,213.79, 363,235.02 and 142,355.07 is: 196,449.99
Step by Step Solution
- Step 1: Write the proportion equation
263,213.79 : 363,235.02 = 142,355.07 : x - Step 2: Convert to fraction form
263,213.79/363,235.02 = 142,355.07/x - Step 3: Cross multiply
263,213.79x = 363,235.02 × 142,355.07 - Step 4: Simplify right side
263,213.79x = 51,708,346,698.55 - Step 5: Solve for x
x = 51,708,346,698.55/263,213.79 - Step 6: Final answer
x = 196,449.99
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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.