Finding the Fourth Proportional to 46.32, 69.43 and 30.08
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Solution
The fourth proportional to 46.32, 69.43 and 30.08 is: 45.09
Step by Step Solution
- Step 1: Write the proportion equation
46.32 : 69.43 = 30.08 : x - Step 2: Convert to fraction form
46.32/69.43 = 30.08/x - Step 3: Cross multiply
46.32x = 69.43 × 30.08 - Step 4: Simplify right side
46.32x = 2,088.30 - Step 5: Solve for x
x = 2,088.30/46.32 - Step 6: Final answer
x = 45.09
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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.