Finding the Fourth Proportional to 189,619.62, 261,652.77 and 104,731.62
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Solution
The fourth proportional to 189,619.62, 261,652.77 and 104,731.62 is: 144,517.32
Step by Step Solution
- Step 1: Write the proportion equation
189,619.62 : 261,652.77 = 104,731.62 : x - Step 2: Convert to fraction form
189,619.62/261,652.77 = 104,731.62/x - Step 3: Cross multiply
189,619.62x = 261,652.77 × 104,731.62 - Step 4: Simplify right side
189,619.62x = 27,403,318,479.59 - Step 5: Solve for x
x = 27,403,318,479.59/189,619.62 - Step 6: Final answer
x = 144,517.32
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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.