Finding the Fourth Proportional to 281,455.84, 388,395.66 and 154,132.12
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Solution
The fourth proportional to 281,455.84, 388,395.66 and 154,132.12 is: 212,694.99
Step by Step Solution
- Step 1: Write the proportion equation
281,455.84 : 388,395.66 = 154,132.12 : x - Step 2: Convert to fraction form
281,455.84/388,395.66 = 154,132.12/x - Step 3: Cross multiply
281,455.84x = 388,395.66 × 154,132.12 - Step 4: Simplify right side
281,455.84x = 59,864,246,474.60 - Step 5: Solve for x
x = 59,864,246,474.60/281,455.84 - Step 6: Final answer
x = 212,694.99
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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.