Finding the Fourth Proportional to 305.70, 458.53 and 122.97
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Solution
The fourth proportional to 305.70, 458.53 and 122.97 is: 184.45
Step by Step Solution
- Step 1: Write the proportion equation
305.70 : 458.53 = 122.97 : x - Step 2: Convert to fraction form
305.70/458.53 = 122.97/x - Step 3: Cross multiply
305.70x = 458.53 × 122.97 - Step 4: Simplify right side
305.70x = 56,385.43 - Step 5: Solve for x
x = 56,385.43/305.70 - Step 6: Final answer
x = 184.45
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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.