Finding the Fourth Proportional to 208.93, 313.53 and 87.19
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Solution
The fourth proportional to 208.93, 313.53 and 87.19 is: 130.84
Step by Step Solution
- Step 1: Write the proportion equation
208.93 : 313.53 = 87.19 : x - Step 2: Convert to fraction form
208.93/313.53 = 87.19/x - Step 3: Cross multiply
208.93x = 313.53 × 87.19 - Step 4: Simplify right side
208.93x = 27,337.03 - Step 5: Solve for x
x = 27,337.03/208.93 - Step 6: Final answer
x = 130.84
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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.