Finding the Fourth Proportional to 395.23, 545.50 and 237.99
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Solution
The fourth proportional to 395.23, 545.50 and 237.99 is: 328.48
Step by Step Solution
- Step 1: Write the proportion equation
395.23 : 545.50 = 237.99 : x - Step 2: Convert to fraction form
395.23/545.50 = 237.99/x - Step 3: Cross multiply
395.23x = 545.50 × 237.99 - Step 4: Simplify right side
395.23x = 129,823.55 - Step 5: Solve for x
x = 129,823.55/395.23 - Step 6: Final answer
x = 328.48
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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.