Finding the Fourth Proportional to 202.69, 304.08 and 87.08
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Solution
The fourth proportional to 202.69, 304.08 and 87.08 is: 130.63
Step by Step Solution
- Step 1: Write the proportion equation
202.69 : 304.08 = 87.08 : x - Step 2: Convert to fraction form
202.69/304.08 = 87.08/x - Step 3: Cross multiply
202.69x = 304.08 × 87.08 - Step 4: Simplify right side
202.69x = 26,477.77 - Step 5: Solve for x
x = 26,477.77/202.69 - Step 6: Final answer
x = 130.63
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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.