Finding the Fourth Proportional to 427.28, 589.83 and 252.68
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Solution
The fourth proportional to 427.28, 589.83 and 252.68 is: 348.81
Step by Step Solution
- Step 1: Write the proportion equation
427.28 : 589.83 = 252.68 : x - Step 2: Convert to fraction form
427.28/589.83 = 252.68/x - Step 3: Cross multiply
427.28x = 589.83 × 252.68 - Step 4: Simplify right side
427.28x = 149,038.24 - Step 5: Solve for x
x = 149,038.24/427.28 - Step 6: Final answer
x = 348.81
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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.