Finding the Fourth Proportional to 260.21, 359.08 and 143.76
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Solution
The fourth proportional to 260.21, 359.08 and 143.76 is: 198.39
Step by Step Solution
- Step 1: Write the proportion equation
260.21 : 359.08 = 143.76 : x - Step 2: Convert to fraction form
260.21/359.08 = 143.76/x - Step 3: Cross multiply
260.21x = 359.08 × 143.76 - Step 4: Simplify right side
260.21x = 51,620.98 - Step 5: Solve for x
x = 51,620.98/260.21 - Step 6: Final answer
x = 198.39
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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.