Finding the Fourth Proportional to 476.28, 657.08 and 279.68
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Solution
The fourth proportional to 476.28, 657.08 and 279.68 is: 385.85
Step by Step Solution
- Step 1: Write the proportion equation
476.28 : 657.08 = 279.68 : x - Step 2: Convert to fraction form
476.28/657.08 = 279.68/x - Step 3: Cross multiply
476.28x = 657.08 × 279.68 - Step 4: Simplify right side
476.28x = 183,772.13 - Step 5: Solve for x
x = 183,772.13/476.28 - Step 6: Final answer
x = 385.85
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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.