Finding the Fourth Proportional to 387,126.36, 534,277.44 and 226,021.32
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Solution
The fourth proportional to 387,126.36, 534,277.44 and 226,021.32 is: 311,934.56
Step by Step Solution
- Step 1: Write the proportion equation
387,126.36 : 534,277.44 = 226,021.32 : x - Step 2: Convert to fraction form
387,126.36/534,277.44 = 226,021.32/x - Step 3: Cross multiply
387,126.36x = 534,277.44 × 226,021.32 - Step 4: Simplify right side
387,126.36x = 120,758,092,235.02 - Step 5: Solve for x
x = 120,758,092,235.02/387,126.36 - Step 6: Final answer
x = 311,934.56
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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.