Finding the Fourth Proportional to 418.08, 627.84 and 202.08
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Solution
The fourth proportional to 418.08, 627.84 and 202.08 is: 303.47
Step by Step Solution
- Step 1: Write the proportion equation
418.08 : 627.84 = 202.08 : x - Step 2: Convert to fraction form
418.08/627.84 = 202.08/x - Step 3: Cross multiply
418.08x = 627.84 × 202.08 - Step 4: Simplify right side
418.08x = 126,873.91 - Step 5: Solve for x
x = 126,873.91/418.08 - Step 6: Final answer
x = 303.47
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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.