Finding the Fourth Proportional to 288,844.92, 398,471.70 and 186,903.18
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Solution
The fourth proportional to 288,844.92, 398,471.70 and 186,903.18 is: 257,839.50
Step by Step Solution
- Step 1: Write the proportion equation
288,844.92 : 398,471.70 = 186,903.18 : x - Step 2: Convert to fraction form
288,844.92/398,471.70 = 186,903.18/x - Step 3: Cross multiply
288,844.92x = 398,471.70 × 186,903.18 - Step 4: Simplify right side
288,844.92x = 74,475,628,570.89 - Step 5: Solve for x
x = 74,475,628,570.89/288,844.92 - Step 6: Final answer
x = 257,839.50
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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.