Finding the Fourth Proportional to 155,408.21, 233,183.03 and 75,402.99
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Solution
The fourth proportional to 155,408.21, 233,183.03 and 75,402.99 is: 113,138.80
Step by Step Solution
- Step 1: Write the proportion equation
155,408.21 : 233,183.03 = 75,402.99 : x - Step 2: Convert to fraction form
155,408.21/233,183.03 = 75,402.99/x - Step 3: Cross multiply
155,408.21x = 233,183.03 × 75,402.99 - Step 4: Simplify right side
155,408.21x = 17,582,697,302.24 - Step 5: Solve for x
x = 17,582,697,302.24/155,408.21 - Step 6: Final answer
x = 113,138.80
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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.