Finding the Fourth Proportional to 418.99, 628.35 and 361.62
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Solution
The fourth proportional to 418.99, 628.35 and 361.62 is: 542.31
Step by Step Solution
- Step 1: Write the proportion equation
418.99 : 628.35 = 361.62 : x - Step 2: Convert to fraction form
418.99/628.35 = 361.62/x - Step 3: Cross multiply
418.99x = 628.35 × 361.62 - Step 4: Simplify right side
418.99x = 227,223.93 - Step 5: Solve for x
x = 227,223.93/418.99 - Step 6: Final answer
x = 542.31
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.