Finding the Fourth Proportional to 324.99, 487.70 and 119.58
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Solution
The fourth proportional to 324.99, 487.70 and 119.58 is: 179.45
Step by Step Solution
- Step 1: Write the proportion equation
324.99 : 487.70 = 119.58 : x - Step 2: Convert to fraction form
324.99/487.70 = 119.58/x - Step 3: Cross multiply
324.99x = 487.70 × 119.58 - Step 4: Simplify right side
324.99x = 58,318.57 - Step 5: Solve for x
x = 58,318.57/324.99 - Step 6: Final answer
x = 179.45
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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.