Finding the Fourth Proportional to 135,340.80, 202,988.80 and 45,382.40
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Solution
The fourth proportional to 135,340.80, 202,988.80 and 45,382.40 is: 68,066.09
Step by Step Solution
- Step 1: Write the proportion equation
135,340.80 : 202,988.80 = 45,382.40 : x - Step 2: Convert to fraction form
135,340.80/202,988.80 = 45,382.40/x - Step 3: Cross multiply
135,340.80x = 202,988.80 × 45,382.40 - Step 4: Simplify right side
135,340.80x = 9,212,118,917.12 - Step 5: Solve for x
x = 9,212,118,917.12/135,340.80 - Step 6: Final answer
x = 68,066.09
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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.