Finding the Fourth Proportional to 455.26, 628.26 and 248.26
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Solution
The fourth proportional to 455.26, 628.26 and 248.26 is: 342.60
Step by Step Solution
- Step 1: Write the proportion equation
455.26 : 628.26 = 248.26 : x - Step 2: Convert to fraction form
455.26/628.26 = 248.26/x - Step 3: Cross multiply
455.26x = 628.26 × 248.26 - Step 4: Simplify right side
455.26x = 155,971.83 - Step 5: Solve for x
x = 155,971.83/455.26 - Step 6: Final answer
x = 342.60
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.