Finding the Fourth Proportional to 248,871.88, 343,447.86 and 135,698.68
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Solution
The fourth proportional to 248,871.88, 343,447.86 and 135,698.68 is: 187,266.72
Step by Step Solution
- Step 1: Write the proportion equation
248,871.88 : 343,447.86 = 135,698.68 : x - Step 2: Convert to fraction form
248,871.88/343,447.86 = 135,698.68/x - Step 3: Cross multiply
248,871.88x = 343,447.86 × 135,698.68 - Step 4: Simplify right side
248,871.88x = 46,605,421,250.82 - Step 5: Solve for x
x = 46,605,421,250.82/248,871.88 - Step 6: Final answer
x = 187,266.72
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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.