Finding the Fourth Proportional to 421,260.88, 581,198.07 and 239,844.45
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Solution
The fourth proportional to 421,260.88, 581,198.07 and 239,844.45 is: 330,904.53
Step by Step Solution
- Step 1: Write the proportion equation
421,260.88 : 581,198.07 = 239,844.45 : x - Step 2: Convert to fraction form
421,260.88/581,198.07 = 239,844.45/x - Step 3: Cross multiply
421,260.88x = 581,198.07 × 239,844.45 - Step 4: Simplify right side
421,260.88x = 139,397,131,440.21 - Step 5: Solve for x
x = 139,397,131,440.21/421,260.88 - Step 6: Final answer
x = 330,904.53
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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.