Finding the Fourth Proportional to 478.68, 718.08 and 170.54
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Solution
The fourth proportional to 478.68, 718.08 and 170.54 is: 255.82
Step by Step Solution
- Step 1: Write the proportion equation
478.68 : 718.08 = 170.54 : x - Step 2: Convert to fraction form
478.68/718.08 = 170.54/x - Step 3: Cross multiply
478.68x = 718.08 × 170.54 - Step 4: Simplify right side
478.68x = 122,457.77 - Step 5: Solve for x
x = 122,457.77/478.68 - Step 6: Final answer
x = 255.82
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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.