Finding the Fourth Proportional to 248,788.80, 343,327.68 and 135,611.55
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Solution
The fourth proportional to 248,788.80, 343,327.68 and 135,611.55 is: 187,143.47
Step by Step Solution
- Step 1: Write the proportion equation
248,788.80 : 343,327.68 = 135,611.55 : x - Step 2: Convert to fraction form
248,788.80/343,327.68 = 135,611.55/x - Step 3: Cross multiply
248,788.80x = 343,327.68 × 135,611.55 - Step 4: Simplify right side
248,788.80x = 46,559,198,842.70 - Step 5: Solve for x
x = 46,559,198,842.70/248,788.80 - Step 6: Final answer
x = 187,143.47
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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.