Finding the Fourth Proportional to 248,986.38, 343,601.21 and 135,809.13
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Solution
The fourth proportional to 248,986.38, 343,601.21 and 135,809.13 is: 187,416.60
Step by Step Solution
- Step 1: Write the proportion equation
248,986.38 : 343,601.21 = 135,809.13 : x - Step 2: Convert to fraction form
248,986.38/343,601.21 = 135,809.13/x - Step 3: Cross multiply
248,986.38x = 343,601.21 × 135,809.13 - Step 4: Simplify right side
248,986.38x = 46,664,181,397.05 - Step 5: Solve for x
x = 46,664,181,397.05/248,986.38 - Step 6: Final answer
x = 187,416.60
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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.