Finding the Fourth Proportional to 455.18, 628.08 and 268.64
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Solution
The fourth proportional to 455.18, 628.08 and 268.64 is: 370.68
Step by Step Solution
- Step 1: Write the proportion equation
455.18 : 628.08 = 268.64 : x - Step 2: Convert to fraction form
455.18/628.08 = 268.64/x - Step 3: Cross multiply
455.18x = 628.08 × 268.64 - Step 4: Simplify right side
455.18x = 168,727.41 - Step 5: Solve for x
x = 168,727.41/455.18 - Step 6: Final answer
x = 370.68
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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.