Finding the Fourth Proportional to 190,850.70, 286,276.05 and 120,809.10
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Solution
The fourth proportional to 190,850.70, 286,276.05 and 120,809.10 is: 181,213.65
Step by Step Solution
- Step 1: Write the proportion equation
190,850.70 : 286,276.05 = 120,809.10 : x - Step 2: Convert to fraction form
190,850.70/286,276.05 = 120,809.10/x - Step 3: Cross multiply
190,850.70x = 286,276.05 × 120,809.10 - Step 4: Simplify right side
190,850.70x = 34,584,751,952.06 - Step 5: Solve for x
x = 34,584,751,952.06/190,850.70 - Step 6: Final answer
x = 181,213.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.