Finding the Fourth Proportional to 280,146.99, 386,621.11 and 159,299.52
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Solution
The fourth proportional to 280,146.99, 386,621.11 and 159,299.52 is: 219,843.73
Step by Step Solution
- Step 1: Write the proportion equation
280,146.99 : 386,621.11 = 159,299.52 : x - Step 2: Convert to fraction form
280,146.99/386,621.11 = 159,299.52/x - Step 3: Cross multiply
280,146.99x = 386,621.11 × 159,299.52 - Step 4: Simplify right side
280,146.99x = 61,588,557,443.99 - Step 5: Solve for x
x = 61,588,557,443.99/280,146.99 - Step 6: Final answer
x = 219,843.73
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1.5x scale
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.