Finding the Fourth Proportional to 470.44, 649.23 and 283.99
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Solution
The fourth proportional to 470.44, 649.23 and 283.99 is: 391.92
Step by Step Solution
- Step 1: Write the proportion equation
470.44 : 649.23 = 283.99 : x - Step 2: Convert to fraction form
470.44/649.23 = 283.99/x - Step 3: Cross multiply
470.44x = 649.23 × 283.99 - Step 4: Simplify right side
470.44x = 184,374.83 - Step 5: Solve for x
x = 184,374.83/470.44 - Step 6: Final answer
x = 391.92
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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.