Finding the Fourth Proportional to 389.24, 583.88 and 183.68
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Solution
The fourth proportional to 389.24, 583.88 and 183.68 is: 275.53
Step by Step Solution
- Step 1: Write the proportion equation
389.24 : 583.88 = 183.68 : x - Step 2: Convert to fraction form
389.24/583.88 = 183.68/x - Step 3: Cross multiply
389.24x = 583.88 × 183.68 - Step 4: Simplify right side
389.24x = 107,247.08 - Step 5: Solve for x
x = 107,247.08/389.24 - Step 6: Final answer
x = 275.53
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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.