Finding the Fourth Proportional to 418.60, 628.36 and 236.18
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Solution
The fourth proportional to 418.60, 628.36 and 236.18 is: 354.53
Step by Step Solution
- Step 1: Write the proportion equation
418.60 : 628.36 = 236.18 : x - Step 2: Convert to fraction form
418.60/628.36 = 236.18/x - Step 3: Cross multiply
418.60x = 628.36 × 236.18 - Step 4: Simplify right side
418.60x = 148,406.06 - Step 5: Solve for x
x = 148,406.06/418.60 - Step 6: Final answer
x = 354.53
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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.