Finding the Fourth Proportional to 209,352.78, 288,805.14 and 124,409.70
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Solution
The fourth proportional to 209,352.78, 288,805.14 and 124,409.70 is: 171,624.95
Step by Step Solution
- Step 1: Write the proportion equation
209,352.78 : 288,805.14 = 124,409.70 : x - Step 2: Convert to fraction form
209,352.78/288,805.14 = 124,409.70/x - Step 3: Cross multiply
209,352.78x = 288,805.14 × 124,409.70 - Step 4: Simplify right side
209,352.78x = 35,930,160,825.86 - Step 5: Solve for x
x = 35,930,160,825.86/209,352.78 - Step 6: Final answer
x = 171,624.95
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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.