Finding the Fourth Proportional to 378.99, 522.64 and 246.26
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Solution
The fourth proportional to 378.99, 522.64 and 246.26 is: 339.59
Step by Step Solution
- Step 1: Write the proportion equation
378.99 : 522.64 = 246.26 : x - Step 2: Convert to fraction form
378.99/522.64 = 246.26/x - Step 3: Cross multiply
378.99x = 522.64 × 246.26 - Step 4: Simplify right side
378.99x = 128,701.48 - Step 5: Solve for x
x = 128,701.48/378.99 - Step 6: Final answer
x = 339.59
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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.