Finding the Fourth Proportional to 202.13, 302.93 and 147.28
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Solution
The fourth proportional to 202.13, 302.93 and 147.28 is: 220.73
Step by Step Solution
- Step 1: Write the proportion equation
202.13 : 302.93 = 147.28 : x - Step 2: Convert to fraction form
202.13/302.93 = 147.28/x - Step 3: Cross multiply
202.13x = 302.93 × 147.28 - Step 4: Simplify right side
202.13x = 44,616.31 - Step 5: Solve for x
x = 44,616.31/202.13 - Step 6: Final answer
x = 220.73
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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.