Finding the Fourth Proportional to 209,174.64, 288,649.94 and 118,531.70
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Solution
The fourth proportional to 209,174.64, 288,649.94 and 118,531.70 is: 163,567.48
Step by Step Solution
- Step 1: Write the proportion equation
209,174.64 : 288,649.94 = 118,531.70 : x - Step 2: Convert to fraction form
209,174.64/288,649.94 = 118,531.70/x - Step 3: Cross multiply
209,174.64x = 288,649.94 × 118,531.70 - Step 4: Simplify right side
209,174.64x = 34,214,168,093.10 - Step 5: Solve for x
x = 34,214,168,093.10/209,174.64 - Step 6: Final answer
x = 163,567.48
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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.