Finding the Fourth Proportional to 392.63, 541.67 and 258.08
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Solution
The fourth proportional to 392.63, 541.67 and 258.08 is: 356.04
Step by Step Solution
- Step 1: Write the proportion equation
392.63 : 541.67 = 258.08 : x - Step 2: Convert to fraction form
392.63/541.67 = 258.08/x - Step 3: Cross multiply
392.63x = 541.67 × 258.08 - Step 4: Simplify right side
392.63x = 139,790.19 - Step 5: Solve for x
x = 139,790.19/392.63 - Step 6: Final answer
x = 356.04
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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.