Finding the Fourth Proportional to 440.13, 659.74 and 147.41
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Solution
The fourth proportional to 440.13, 659.74 and 147.41 is: 220.96
Step by Step Solution
- Step 1: Write the proportion equation
440.13 : 659.74 = 147.41 : x - Step 2: Convert to fraction form
440.13/659.74 = 147.41/x - Step 3: Cross multiply
440.13x = 659.74 × 147.41 - Step 4: Simplify right side
440.13x = 97,250.71 - Step 5: Solve for x
x = 97,250.71/440.13 - Step 6: Final answer
x = 220.96
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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.