Finding the Fourth Proportional to 289.13, 432.68 and 173.63
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Solution
The fourth proportional to 289.13, 432.68 and 173.63 is: 259.84
Step by Step Solution
- Step 1: Write the proportion equation
289.13 : 432.68 = 173.63 : x - Step 2: Convert to fraction form
289.13/432.68 = 173.63/x - Step 3: Cross multiply
289.13x = 432.68 × 173.63 - Step 4: Simplify right side
289.13x = 75,126.44 - Step 5: Solve for x
x = 75,126.44/289.13 - Step 6: Final answer
x = 259.84
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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.