Finding the Fourth Proportional to 476.24, 657.14 and 289.62
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Solution
The fourth proportional to 476.24, 657.14 and 289.62 is: 399.63
Step by Step Solution
- Step 1: Write the proportion equation
476.24 : 657.14 = 289.62 : x - Step 2: Convert to fraction form
476.24/657.14 = 289.62/x - Step 3: Cross multiply
476.24x = 657.14 × 289.62 - Step 4: Simplify right side
476.24x = 190,319.44 - Step 5: Solve for x
x = 190,319.44/476.24 - Step 6: Final answer
x = 399.63
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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.