Finding the Fourth Proportional to 259.26, 388.92 and 88.26
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Solution
The fourth proportional to 259.26, 388.92 and 88.26 is: 132.40
Step by Step Solution
- Step 1: Write the proportion equation
259.26 : 388.92 = 88.26 : x - Step 2: Convert to fraction form
259.26/388.92 = 88.26/x - Step 3: Cross multiply
259.26x = 388.92 × 88.26 - Step 4: Simplify right side
259.26x = 34,326.08 - Step 5: Solve for x
x = 34,326.08/259.26 - Step 6: Final answer
x = 132.40
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.