Finding the Fourth Proportional to 387.59, 534.99 and 248.08
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Solution
The fourth proportional to 387.59, 534.99 and 248.08 is: 342.42
Step by Step Solution
- Step 1: Write the proportion equation
387.59 : 534.99 = 248.08 : x - Step 2: Convert to fraction form
387.59/534.99 = 248.08/x - Step 3: Cross multiply
387.59x = 534.99 × 248.08 - Step 4: Simplify right side
387.59x = 132,717.26 - Step 5: Solve for x
x = 132,717.26/387.59 - Step 6: Final answer
x = 342.42
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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.