Finding the Fourth Proportional to 355.74, 533.68 and 201.74
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Solution
The fourth proportional to 355.74, 533.68 and 201.74 is: 302.64
Step by Step Solution
- Step 1: Write the proportion equation
355.74 : 533.68 = 201.74 : x - Step 2: Convert to fraction form
355.74/533.68 = 201.74/x - Step 3: Cross multiply
355.74x = 533.68 × 201.74 - Step 4: Simplify right side
355.74x = 107,660.93 - Step 5: Solve for x
x = 107,660.93/355.74 - Step 6: Final answer
x = 302.64
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.