Finding the Fourth Proportional to 380.23, 524.70 and 230.99
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Solution
The fourth proportional to 380.23, 524.70 and 230.99 is: 318.75
Step by Step Solution
- Step 1: Write the proportion equation
380.23 : 524.70 = 230.99 : x - Step 2: Convert to fraction form
380.23/524.70 = 230.99/x - Step 3: Cross multiply
380.23x = 524.70 × 230.99 - Step 4: Simplify right side
380.23x = 121,197.83 - Step 5: Solve for x
x = 121,197.83/380.23 - Step 6: Final answer
x = 318.75
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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.