Finding the Fourth Proportional to 202.57, 279.68 and 147.44
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Solution
The fourth proportional to 202.57, 279.68 and 147.44 is: 203.57
Step by Step Solution
- Step 1: Write the proportion equation
202.57 : 279.68 = 147.44 : x - Step 2: Convert to fraction form
202.57/279.68 = 147.44/x - Step 3: Cross multiply
202.57x = 279.68 × 147.44 - Step 4: Simplify right side
202.57x = 41,235.98 - Step 5: Solve for x
x = 41,235.98/202.57 - Step 6: Final answer
x = 203.57
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.