Finding the Fourth Proportional to 385,187.36, 531,391.38 and 232,138.58
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Solution
The fourth proportional to 385,187.36, 531,391.38 and 232,138.58 is: 320,250.49
Step by Step Solution
- Step 1: Write the proportion equation
385,187.36 : 531,391.38 = 232,138.58 : x - Step 2: Convert to fraction form
385,187.36/531,391.38 = 232,138.58/x - Step 3: Cross multiply
385,187.36x = 531,391.38 × 232,138.58 - Step 4: Simplify right side
385,187.36x = 123,356,440,377.44 - Step 5: Solve for x
x = 123,356,440,377.44/385,187.36 - Step 6: Final answer
x = 320,250.49
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.