Finding the Fourth Proportional to 326,015.52, 449,381.75 and 256,992.49
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Solution
The fourth proportional to 326,015.52, 449,381.75 and 256,992.49 is: 354,239.99
Step by Step Solution
- Step 1: Write the proportion equation
326,015.52 : 449,381.75 = 256,992.49 : x - Step 2: Convert to fraction form
326,015.52/449,381.75 = 256,992.49/x - Step 3: Cross multiply
326,015.52x = 449,381.75 × 256,992.49 - Step 4: Simplify right side
326,015.52x = 115,487,734,893.06 - Step 5: Solve for x
x = 115,487,734,893.06/326,015.52 - Step 6: Final answer
x = 354,239.99
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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.