Finding the Fourth Proportional to 617,643.09, 926,539.39 and 218,202.12
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Solution
The fourth proportional to 617,643.09, 926,539.39 and 218,202.12 is: 327,329.59
Step by Step Solution
- Step 1: Write the proportion equation
617,643.09 : 926,539.39 = 218,202.12 : x - Step 2: Convert to fraction form
617,643.09/926,539.39 = 218,202.12/x - Step 3: Cross multiply
617,643.09x = 926,539.39 × 218,202.12 - Step 4: Simplify right side
617,643.09x = 202,172,859,161.51 - Step 5: Solve for x
x = 202,172,859,161.51/617,643.09 - Step 6: Final answer
x = 327,329.59
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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.