Finding the Fourth Proportional to 248,636.80, 343,115.58 and 135,459.64
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Solution
The fourth proportional to 248,636.80, 343,115.58 and 135,459.64 is: 186,932.56
Step by Step Solution
- Step 1: Write the proportion equation
248,636.80 : 343,115.58 = 135,459.64 : x - Step 2: Convert to fraction form
248,636.80/343,115.58 = 135,459.64/x - Step 3: Cross multiply
248,636.80x = 343,115.58 × 135,459.64 - Step 4: Simplify right side
248,636.80x = 46,478,312,945.19 - Step 5: Solve for x
x = 46,478,312,945.19/248,636.80 - Step 6: Final answer
x = 186,932.56
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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.