Finding the Fourth Proportional to 287,750.52, 431,625.78 and 121,539.96
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Solution
The fourth proportional to 287,750.52, 431,625.78 and 121,539.96 is: 182,309.94
Step by Step Solution
- Step 1: Write the proportion equation
287,750.52 : 431,625.78 = 121,539.96 : x - Step 2: Convert to fraction form
287,750.52/431,625.78 = 121,539.96/x - Step 3: Cross multiply
287,750.52x = 431,625.78 × 121,539.96 - Step 4: Simplify right side
287,750.52x = 52,459,780,036.17 - Step 5: Solve for x
x = 52,459,780,036.17/287,750.52 - Step 6: Final answer
x = 182,309.94
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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.