Finding the Fourth Proportional to 306.60, 460.08 and 144.20
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Solution
The fourth proportional to 306.60, 460.08 and 144.20 is: 216.38
Step by Step Solution
- Step 1: Write the proportion equation
306.60 : 460.08 = 144.20 : x - Step 2: Convert to fraction form
306.60/460.08 = 144.20/x - Step 3: Cross multiply
306.60x = 460.08 × 144.20 - Step 4: Simplify right side
306.60x = 66,341.24 - Step 5: Solve for x
x = 66,341.24/306.60 - Step 6: Final answer
x = 216.38
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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.