Finding the Fourth Proportional to 357.13, 492.84 and 201.88
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Solution
The fourth proportional to 357.13, 492.84 and 201.88 is: 278.59
Step by Step Solution
- Step 1: Write the proportion equation
357.13 : 492.84 = 201.88 : x - Step 2: Convert to fraction form
357.13/492.84 = 201.88/x - Step 3: Cross multiply
357.13x = 492.84 × 201.88 - Step 4: Simplify right side
357.13x = 99,491.07 - Step 5: Solve for x
x = 99,491.07/357.13 - Step 6: Final answer
x = 278.59
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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.