Finding the Fourth Proportional to 281,543.38, 388,530.06 and 154,219.48
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Solution
The fourth proportional to 281,543.38, 388,530.06 and 154,219.48 is: 212,822.99
Step by Step Solution
- Step 1: Write the proportion equation
281,543.38 : 388,530.06 = 154,219.48 : x - Step 2: Convert to fraction form
281,543.38/388,530.06 = 154,219.48/x - Step 3: Cross multiply
281,543.38x = 388,530.06 × 154,219.48 - Step 4: Simplify right side
281,543.38x = 59,918,903,817.57 - Step 5: Solve for x
x = 59,918,903,817.57/281,543.38 - Step 6: Final answer
x = 212,822.99
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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.