Finding the Fourth Proportional to 288,414.69, 398,009.93 and 159,352.75
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Solution
The fourth proportional to 288,414.69, 398,009.93 and 159,352.75 is: 219,905.50
Step by Step Solution
- Step 1: Write the proportion equation
288,414.69 : 398,009.93 = 159,352.75 : x - Step 2: Convert to fraction form
288,414.69/398,009.93 = 159,352.75/x - Step 3: Cross multiply
288,414.69x = 398,009.93 × 159,352.75 - Step 4: Simplify right side
288,414.69x = 63,423,976,076.04 - Step 5: Solve for x
x = 63,423,976,076.04/288,414.69 - Step 6: Final answer
x = 219,905.50
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1.5x scale
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.