Finding the Fourth Proportional to 253,451.64, 349,750.80 and 144,560.28
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Solution
The fourth proportional to 253,451.64, 349,750.80 and 144,560.28 is: 199,486.08
Step by Step Solution
- Step 1: Write the proportion equation
253,451.64 : 349,750.80 = 144,560.28 : x - Step 2: Convert to fraction form
253,451.64/349,750.80 = 144,560.28/x - Step 3: Cross multiply
253,451.64x = 349,750.80 × 144,560.28 - Step 4: Simplify right side
253,451.64x = 50,560,073,578.22 - Step 5: Solve for x
x = 50,560,073,578.22/253,451.64 - Step 6: Final answer
x = 199,486.08
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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.