Finding the Fourth Proportional to 454.26, 626.93 and 257.75
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Solution
The fourth proportional to 454.26, 626.93 and 257.75 is: 355.72
Step by Step Solution
- Step 1: Write the proportion equation
454.26 : 626.93 = 257.75 : x - Step 2: Convert to fraction form
454.26/626.93 = 257.75/x - Step 3: Cross multiply
454.26x = 626.93 × 257.75 - Step 4: Simplify right side
454.26x = 161,589.92 - Step 5: Solve for x
x = 161,589.92/454.26 - Step 6: Final answer
x = 355.72
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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.