Finding the Fourth Proportional to 316,382.26, 436,539.90 and 187,361.28
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Solution
The fourth proportional to 316,382.26, 436,539.90 and 187,361.28 is: 258,518.52
Step by Step Solution
- Step 1: Write the proportion equation
316,382.26 : 436,539.90 = 187,361.28 : x - Step 2: Convert to fraction form
316,382.26/436,539.90 = 187,361.28/x - Step 3: Cross multiply
316,382.26x = 436,539.90 × 187,361.28 - Step 4: Simplify right side
316,382.26x = 81,790,674,435.07 - Step 5: Solve for x
x = 81,790,674,435.07/316,382.26 - Step 6: Final answer
x = 258,518.52
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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.