Finding the Fourth Proportional to 248,412.49, 342,810.53 and 135,236.05
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Solution
The fourth proportional to 248,412.49, 342,810.53 and 135,236.05 is: 186,626.45
Step by Step Solution
- Step 1: Write the proportion equation
248,412.49 : 342,810.53 = 135,236.05 : x - Step 2: Convert to fraction form
248,412.49/342,810.53 = 135,236.05/x - Step 3: Cross multiply
248,412.49x = 342,810.53 × 135,236.05 - Step 4: Simplify right side
248,412.49x = 46,360,340,949.54 - Step 5: Solve for x
x = 46,360,340,949.54/248,412.49 - Step 6: Final answer
x = 186,626.45
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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.