Finding the Fourth Proportional to 314.99, 471.40 and 242.99
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Solution
The fourth proportional to 314.99, 471.40 and 242.99 is: 363.65
Step by Step Solution
- Step 1: Write the proportion equation
314.99 : 471.40 = 242.99 : x - Step 2: Convert to fraction form
314.99/471.40 = 242.99/x - Step 3: Cross multiply
314.99x = 471.40 × 242.99 - Step 4: Simplify right side
314.99x = 114,545.49 - Step 5: Solve for x
x = 114,545.49/314.99 - Step 6: Final answer
x = 363.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.