Finding the Fourth Proportional to 421.52, 581.68 and 234.99
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Solution
The fourth proportional to 421.52, 581.68 and 234.99 is: 324.28
Step by Step Solution
- Step 1: Write the proportion equation
421.52 : 581.68 = 234.99 : x - Step 2: Convert to fraction form
421.52/581.68 = 234.99/x - Step 3: Cross multiply
421.52x = 581.68 × 234.99 - Step 4: Simplify right side
421.52x = 136,688.98 - Step 5: Solve for x
x = 136,688.98/421.52 - Step 6: Final answer
x = 324.28
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.