Finding the Fourth Proportional to 205,770.12, 283,973.81 and 115,120.68
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Solution
The fourth proportional to 205,770.12, 283,973.81 and 115,120.68 is: 158,872.71
Step by Step Solution
- Step 1: Write the proportion equation
205,770.12 : 283,973.81 = 115,120.68 : x - Step 2: Convert to fraction form
205,770.12/283,973.81 = 115,120.68/x - Step 3: Cross multiply
205,770.12x = 283,973.81 × 115,120.68 - Step 4: Simplify right side
205,770.12x = 32,691,257,533.79 - Step 5: Solve for x
x = 32,691,257,533.79/205,770.12 - Step 6: Final answer
x = 158,872.71
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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.