Finding the Fourth Proportional to 357.10, 535.55 and 161.99
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Solution
The fourth proportional to 357.10, 535.55 and 161.99 is: 242.94
Step by Step Solution
- Step 1: Write the proportion equation
357.10 : 535.55 = 161.99 : x - Step 2: Convert to fraction form
357.10/535.55 = 161.99/x - Step 3: Cross multiply
357.10x = 535.55 × 161.99 - Step 4: Simplify right side
357.10x = 86,753.74 - Step 5: Solve for x
x = 86,753.74/357.10 - Step 6: Final answer
x = 242.94
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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.