Finding the Fourth Proportional to 188.30, 282.49 and 60.05
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Solution
The fourth proportional to 188.30, 282.49 and 60.05 is: 90.09
Step by Step Solution
- Step 1: Write the proportion equation
188.30 : 282.49 = 60.05 : x - Step 2: Convert to fraction form
188.30/282.49 = 60.05/x - Step 3: Cross multiply
188.30x = 282.49 × 60.05 - Step 4: Simplify right side
188.30x = 16,962.83 - Step 5: Solve for x
x = 16,962.83/188.30 - Step 6: Final answer
x = 90.09
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.