Finding the Fourth Proportional to 248,739.12, 343,268.28 and 135,565.92
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Solution
The fourth proportional to 248,739.12, 343,268.28 and 135,565.92 is: 187,085.49
Step by Step Solution
- Step 1: Write the proportion equation
248,739.12 : 343,268.28 = 135,565.92 : x - Step 2: Convert to fraction form
248,739.12/343,268.28 = 135,565.92/x - Step 3: Cross multiply
248,739.12x = 343,268.28 × 135,565.92 - Step 4: Simplify right side
248,739.12x = 46,535,480,185.02 - Step 5: Solve for x
x = 46,535,480,185.02/248,739.12 - Step 6: Final answer
x = 187,085.49
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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.