Finding the Fourth Proportional to 401,115.14, 553,620.94 and 231,326.18
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Solution
The fourth proportional to 401,115.14, 553,620.94 and 231,326.18 is: 319,277.45
Step by Step Solution
- Step 1: Write the proportion equation
401,115.14 : 553,620.94 = 231,326.18 : x - Step 2: Convert to fraction form
401,115.14/553,620.94 = 231,326.18/x - Step 3: Cross multiply
401,115.14x = 553,620.94 × 231,326.18 - Step 4: Simplify right side
401,115.14x = 128,067,017,218.21 - Step 5: Solve for x
x = 128,067,017,218.21/401,115.14 - Step 6: Final answer
x = 319,277.45
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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.