Finding the Fourth Proportional to 248,729.50, 343,249.14 and 135,554.68
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Solution
The fourth proportional to 248,729.50, 343,249.14 and 135,554.68 is: 187,066.78
Step by Step Solution
- Step 1: Write the proportion equation
248,729.50 : 343,249.14 = 135,554.68 : x - Step 2: Convert to fraction form
248,729.50/343,249.14 = 135,554.68/x - Step 3: Cross multiply
248,729.50x = 343,249.14 × 135,554.68 - Step 4: Simplify right side
248,729.50x = 46,529,027,332.98 - Step 5: Solve for x
x = 46,529,027,332.98/248,729.50 - Step 6: Final answer
x = 187,066.78
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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.