Finding the Fourth Proportional to 512,753.19, 769,231.85 and 157,753.68
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Solution
The fourth proportional to 512,753.19, 769,231.85 and 157,753.68 is: 236,661.92
Step by Step Solution
- Step 1: Write the proportion equation
512,753.19 : 769,231.85 = 157,753.68 : x - Step 2: Convert to fraction form
512,753.19/769,231.85 = 157,753.68/x - Step 3: Cross multiply
512,753.19x = 769,231.85 × 157,753.68 - Step 4: Simplify right side
512,753.19x = 121,349,154,321.94 - Step 5: Solve for x
x = 121,349,154,321.94/512,753.19 - Step 6: Final answer
x = 236,661.92
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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.