Finding the Fourth Proportional to 243.17, 364.99 and 189.65
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Solution
The fourth proportional to 243.17, 364.99 and 189.65 is: 284.66
Step by Step Solution
- Step 1: Write the proportion equation
243.17 : 364.99 = 189.65 : x - Step 2: Convert to fraction form
243.17/364.99 = 189.65/x - Step 3: Cross multiply
243.17x = 364.99 × 189.65 - Step 4: Simplify right side
243.17x = 69,220.35 - Step 5: Solve for x
x = 69,220.35/243.17 - Step 6: Final answer
x = 284.66
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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.