Finding the Fourth Proportional to 395.08, 545.62 and 328.94
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Solution
The fourth proportional to 395.08, 545.62 and 328.94 is: 454.28
Step by Step Solution
- Step 1: Write the proportion equation
395.08 : 545.62 = 328.94 : x - Step 2: Convert to fraction form
395.08/545.62 = 328.94/x - Step 3: Cross multiply
395.08x = 545.62 × 328.94 - Step 4: Simplify right side
395.08x = 179,476.24 - Step 5: Solve for x
x = 179,476.24/395.08 - Step 6: Final answer
x = 454.28
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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.