Finding the Fourth Proportional to 202.62, 303.70 and 87.13
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Solution
The fourth proportional to 202.62, 303.70 and 87.13 is: 130.59
Step by Step Solution
- Step 1: Write the proportion equation
202.62 : 303.70 = 87.13 : x - Step 2: Convert to fraction form
202.62/303.70 = 87.13/x - Step 3: Cross multiply
202.62x = 303.70 × 87.13 - Step 4: Simplify right side
202.62x = 26,460.00 - Step 5: Solve for x
x = 26,460.00/202.62 - Step 6: Final answer
x = 130.59
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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.