Finding the Fourth Proportional to 286.60, 430.11 and 104.01
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Solution
The fourth proportional to 286.60, 430.11 and 104.01 is: 156.09
Step by Step Solution
- Step 1: Write the proportion equation
286.60 : 430.11 = 104.01 : x - Step 2: Convert to fraction form
286.60/430.11 = 104.01/x - Step 3: Cross multiply
286.60x = 430.11 × 104.01 - Step 4: Simplify right side
286.60x = 44,735.74 - Step 5: Solve for x
x = 44,735.74/286.60 - Step 6: Final answer
x = 156.09
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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.