Finding the Fourth Proportional to 857,242.49, 1,285,917.18 and 226,156.91
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Solution
The fourth proportional to 857,242.49, 1,285,917.18 and 226,156.91 is: 339,249.46
Step by Step Solution
- Step 1: Write the proportion equation
857,242.49 : 1,285,917.18 = 226,156.91 : x - Step 2: Convert to fraction form
857,242.49/1,285,917.18 = 226,156.91/x - Step 3: Cross multiply
857,242.49x = 1,285,917.18 × 226,156.91 - Step 4: Simplify right side
857,242.49x = 290,819,049,515.13 - Step 5: Solve for x
x = 290,819,049,515.13/857,242.49 - Step 6: Final answer
x = 339,249.46
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1.5x scale
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.