Finding the Fourth Proportional to 260.28, 359.26 and 149.79
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Solution
The fourth proportional to 260.28, 359.26 and 149.79 is: 206.75
Step by Step Solution
- Step 1: Write the proportion equation
260.28 : 359.26 = 149.79 : x - Step 2: Convert to fraction form
260.28/359.26 = 149.79/x - Step 3: Cross multiply
260.28x = 359.26 × 149.79 - Step 4: Simplify right side
260.28x = 53,813.18 - Step 5: Solve for x
x = 53,813.18/260.28 - Step 6: Final answer
x = 206.75
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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.