Finding the Fourth Proportional to 316,218.68, 436,311.84 and 193,736.93
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Solution
The fourth proportional to 316,218.68, 436,311.84 and 193,736.93 is: 267,314.11
Step by Step Solution
- Step 1: Write the proportion equation
316,218.68 : 436,311.84 = 193,736.93 : x - Step 2: Convert to fraction form
316,218.68/436,311.84 = 193,736.93/x - Step 3: Cross multiply
316,218.68x = 436,311.84 × 193,736.93 - Step 4: Simplify right side
316,218.68x = 84,529,716,404.25 - Step 5: Solve for x
x = 84,529,716,404.25/316,218.68 - Step 6: Final answer
x = 267,314.11
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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.