Finding the Fourth Proportional to 431.26, 595.14 and 234.78
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Solution
The fourth proportional to 431.26, 595.14 and 234.78 is: 323.99
Step by Step Solution
- Step 1: Write the proportion equation
431.26 : 595.14 = 234.78 : x - Step 2: Convert to fraction form
431.26/595.14 = 234.78/x - Step 3: Cross multiply
431.26x = 595.14 × 234.78 - Step 4: Simplify right side
431.26x = 139,723.99 - Step 5: Solve for x
x = 139,723.99/431.26 - Step 6: Final answer
x = 323.99
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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.