Finding the Fourth Proportional to 418.99, 628.26 and 236.74
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Solution
The fourth proportional to 418.99, 628.26 and 236.74 is: 354.98
Step by Step Solution
- Step 1: Write the proportion equation
418.99 : 628.26 = 236.74 : x - Step 2: Convert to fraction form
418.99/628.26 = 236.74/x - Step 3: Cross multiply
418.99x = 628.26 × 236.74 - Step 4: Simplify right side
418.99x = 148,734.27 - Step 5: Solve for x
x = 148,734.27/418.99 - Step 6: Final answer
x = 354.98
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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.