Finding the Fourth Proportional to 395.76, 545.79 and 246.19
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Solution
The fourth proportional to 395.76, 545.79 and 246.19 is: 339.52
Step by Step Solution
- Step 1: Write the proportion equation
395.76 : 545.79 = 246.19 : x - Step 2: Convert to fraction form
395.76/545.79 = 246.19/x - Step 3: Cross multiply
395.76x = 545.79 × 246.19 - Step 4: Simplify right side
395.76x = 134,368.17 - Step 5: Solve for x
x = 134,368.17/395.76 - Step 6: Final answer
x = 339.52
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.