Finding the Fourth Proportional to 289,049.84, 433,564.35 and 75,816.05
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Solution
The fourth proportional to 289,049.84, 433,564.35 and 75,816.05 is: 113,721.34
Step by Step Solution
- Step 1: Write the proportion equation
289,049.84 : 433,564.35 = 75,816.05 : x - Step 2: Convert to fraction form
289,049.84/433,564.35 = 75,816.05/x - Step 3: Cross multiply
289,049.84x = 433,564.35 × 75,816.05 - Step 4: Simplify right side
289,049.84x = 32,871,136,424.49 - Step 5: Solve for x
x = 32,871,136,424.49/289,049.84 - Step 6: Final answer
x = 113,721.34
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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.