Finding the Fourth Proportional to 291,130.80, 436,716.36 and 113,578.80
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Solution
The fourth proportional to 291,130.80, 436,716.36 and 113,578.80 is: 170,376.07
Step by Step Solution
- Step 1: Write the proportion equation
291,130.80 : 436,716.36 = 113,578.80 : x - Step 2: Convert to fraction form
291,130.80/436,716.36 = 113,578.80/x - Step 3: Cross multiply
291,130.80x = 436,716.36 × 113,578.80 - Step 4: Simplify right side
291,130.80x = 49,601,720,109.17 - Step 5: Solve for x
x = 49,601,720,109.17/291,130.80 - Step 6: Final answer
x = 170,376.07
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.