Finding the Fourth Proportional to 331.15, 456.99 and 183.77
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Solution
The fourth proportional to 331.15, 456.99 and 183.77 is: 253.60
Step by Step Solution
- Step 1: Write the proportion equation
331.15 : 456.99 = 183.77 : x - Step 2: Convert to fraction form
331.15/456.99 = 183.77/x - Step 3: Cross multiply
331.15x = 456.99 × 183.77 - Step 4: Simplify right side
331.15x = 83,981.05 - Step 5: Solve for x
x = 83,981.05/331.15 - Step 6: Final answer
x = 253.60
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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.