Finding the Fourth Proportional to 403.63, 557.07 and 246.28
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Solution
The fourth proportional to 403.63, 557.07 and 246.28 is: 339.90
Step by Step Solution
- Step 1: Write the proportion equation
403.63 : 557.07 = 246.28 : x - Step 2: Convert to fraction form
403.63/557.07 = 246.28/x - Step 3: Cross multiply
403.63x = 557.07 × 246.28 - Step 4: Simplify right side
403.63x = 137,193.97 - Step 5: Solve for x
x = 137,193.97/403.63 - Step 6: Final answer
x = 339.90
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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.