Finding the Fourth Proportional to 268,134.66, 401,589.36 and 127,991.70
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Solution
The fourth proportional to 268,134.66, 401,589.36 and 127,991.70 is: 191,695.12
Step by Step Solution
- Step 1: Write the proportion equation
268,134.66 : 401,589.36 = 127,991.70 : x - Step 2: Convert to fraction form
268,134.66/401,589.36 = 127,991.70/x - Step 3: Cross multiply
268,134.66x = 401,589.36 × 127,991.70 - Step 4: Simplify right side
268,134.66x = 51,400,104,888.31 - Step 5: Solve for x
x = 51,400,104,888.31/268,134.66 - Step 6: Final answer
x = 191,695.12
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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.