Finding the Fourth Proportional to 289,295.88, 434,224.41 and 139,641.63
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Solution
The fourth proportional to 289,295.88, 434,224.41 and 139,641.63 is: 209,597.88
Step by Step Solution
- Step 1: Write the proportion equation
289,295.88 : 434,224.41 = 139,641.63 : x - Step 2: Convert to fraction form
289,295.88/434,224.41 = 139,641.63/x - Step 3: Cross multiply
289,295.88x = 434,224.41 × 139,641.63 - Step 4: Simplify right side
289,295.88x = 60,635,804,398.19 - Step 5: Solve for x
x = 60,635,804,398.19/289,295.88 - Step 6: Final answer
x = 209,597.88
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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.