Finding the Fourth Proportional to 423.19, 583.84 and 248.54
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Solution
The fourth proportional to 423.19, 583.84 and 248.54 is: 342.88
Step by Step Solution
- Step 1: Write the proportion equation
423.19 : 583.84 = 248.54 : x - Step 2: Convert to fraction form
423.19/583.84 = 248.54/x - Step 3: Cross multiply
423.19x = 583.84 × 248.54 - Step 4: Simplify right side
423.19x = 145,104.99 - Step 5: Solve for x
x = 145,104.99/423.19 - Step 6: Final answer
x = 342.88
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.