Finding the Fourth Proportional to 281,348.06, 388,260.36 and 154,023.68
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Solution
The fourth proportional to 281,348.06, 388,260.36 and 154,023.68 is: 212,552.70
Step by Step Solution
- Step 1: Write the proportion equation
281,348.06 : 388,260.36 = 154,023.68 : x - Step 2: Convert to fraction form
281,348.06/388,260.36 = 154,023.68/x - Step 3: Cross multiply
281,348.06x = 388,260.36 × 154,023.68 - Step 4: Simplify right side
281,348.06x = 59,801,289,445.32 - Step 5: Solve for x
x = 59,801,289,445.32/281,348.06 - Step 6: Final answer
x = 212,552.70
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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.