Finding the Fourth Proportional to 364.34, 502.78 and 198.55
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Solution
The fourth proportional to 364.34, 502.78 and 198.55 is: 273.99
Step by Step Solution
- Step 1: Write the proportion equation
364.34 : 502.78 = 198.55 : x - Step 2: Convert to fraction form
364.34/502.78 = 198.55/x - Step 3: Cross multiply
364.34x = 502.78 × 198.55 - Step 4: Simplify right side
364.34x = 99,826.97 - Step 5: Solve for x
x = 99,826.97/364.34 - Step 6: Final answer
x = 273.99
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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.