Finding the Fourth Proportional to 455.36, 627.97 and 306.32
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Solution
The fourth proportional to 455.36, 627.97 and 306.32 is: 422.43
Step by Step Solution
- Step 1: Write the proportion equation
455.36 : 627.97 = 306.32 : x - Step 2: Convert to fraction form
455.36/627.97 = 306.32/x - Step 3: Cross multiply
455.36x = 627.97 × 306.32 - Step 4: Simplify right side
455.36x = 192,358.24 - Step 5: Solve for x
x = 192,358.24/455.36 - Step 6: Final answer
x = 422.43
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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.