Finding the Fourth Proportional to 392.23, 589.26 and 376.74
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Solution
The fourth proportional to 392.23, 589.26 and 376.74 is: 565.99
Step by Step Solution
- Step 1: Write the proportion equation
392.23 : 589.26 = 376.74 : x - Step 2: Convert to fraction form
392.23/589.26 = 376.74/x - Step 3: Cross multiply
392.23x = 589.26 × 376.74 - Step 4: Simplify right side
392.23x = 221,997.81 - Step 5: Solve for x
x = 221,997.81/392.23 - Step 6: Final answer
x = 565.99
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.