Finding the Fourth Proportional to 340.26, 510.26 and 147.75
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Solution
The fourth proportional to 340.26, 510.26 and 147.75 is: 221.57
Step by Step Solution
- Step 1: Write the proportion equation
340.26 : 510.26 = 147.75 : x - Step 2: Convert to fraction form
340.26/510.26 = 147.75/x - Step 3: Cross multiply
340.26x = 510.26 × 147.75 - Step 4: Simplify right side
340.26x = 75,390.18 - Step 5: Solve for x
x = 75,390.18/340.26 - Step 6: Final answer
x = 221.57
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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.