Finding the Fourth Proportional to 548.10, 756 and 417.42
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Solution
The fourth proportional to 548.10, 756 and 417.42 is: 575.75
Step by Step Solution
- Step 1: Write the proportion equation
548.10 : 756 = 417.42 : x - Step 2: Convert to fraction form
548.10/756 = 417.42/x - Step 3: Cross multiply
548.10x = 756 × 417.42 - Step 4: Simplify right side
548.10x = 315,569.52 - Step 5: Solve for x
x = 315,569.52/548.10 - Step 6: Final answer
x = 575.75
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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.