Finding the Fourth Proportional to 283.42, 390.99 and 190.14
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Solution
The fourth proportional to 283.42, 390.99 and 190.14 is: 262.31
Step by Step Solution
- Step 1: Write the proportion equation
283.42 : 390.99 = 190.14 : x - Step 2: Convert to fraction form
283.42/390.99 = 190.14/x - Step 3: Cross multiply
283.42x = 390.99 × 190.14 - Step 4: Simplify right side
283.42x = 74,342.84 - Step 5: Solve for x
x = 74,342.84/283.42 - Step 6: Final answer
x = 262.31
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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.