Finding the Fourth Proportional to 353.26, 530.07 and 136.99
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Solution
The fourth proportional to 353.26, 530.07 and 136.99 is: 205.55
Step by Step Solution
- Step 1: Write the proportion equation
353.26 : 530.07 = 136.99 : x - Step 2: Convert to fraction form
353.26/530.07 = 136.99/x - Step 3: Cross multiply
353.26x = 530.07 × 136.99 - Step 4: Simplify right side
353.26x = 72,614.29 - Step 5: Solve for x
x = 72,614.29/353.26 - Step 6: Final answer
x = 205.55
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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.