Finding the Fourth Proportional to 512,293.28, 768,554.12 and 157,343.12
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Solution
The fourth proportional to 512,293.28, 768,554.12 and 157,343.12 is: 236,049.75
Step by Step Solution
- Step 1: Write the proportion equation
512,293.28 : 768,554.12 = 157,343.12 : x - Step 2: Convert to fraction form
512,293.28/768,554.12 = 157,343.12/x - Step 3: Cross multiply
512,293.28x = 768,554.12 × 157,343.12 - Step 4: Simplify right side
512,293.28x = 120,926,703,129.65 - Step 5: Solve for x
x = 120,926,703,129.65/512,293.28 - Step 6: Final answer
x = 236,049.75
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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.