Finding the Fourth Proportional to 282,251.49, 389,493.77 and 153,187.05
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Solution
The fourth proportional to 282,251.49, 389,493.77 and 153,187.05 is: 211,390.92
Step by Step Solution
- Step 1: Write the proportion equation
282,251.49 : 389,493.77 = 153,187.05 : x - Step 2: Convert to fraction form
282,251.49/389,493.77 = 153,187.05/x - Step 3: Cross multiply
282,251.49x = 389,493.77 × 153,187.05 - Step 4: Simplify right side
282,251.49x = 59,665,400,123.44 - Step 5: Solve for x
x = 59,665,400,123.44/282,251.49 - Step 6: Final answer
x = 211,390.92
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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.