Finding the Fourth Proportional to 155.30, 234.05 and 147.98
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Solution
The fourth proportional to 155.30, 234.05 and 147.98 is: 223.02
Step by Step Solution
- Step 1: Write the proportion equation
155.30 : 234.05 = 147.98 : x - Step 2: Convert to fraction form
155.30/234.05 = 147.98/x - Step 3: Cross multiply
155.30x = 234.05 × 147.98 - Step 4: Simplify right side
155.30x = 34,634.72 - Step 5: Solve for x
x = 34,634.72/155.30 - Step 6: Final answer
x = 223.02
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.