Finding the Fourth Proportional to 421,375.14, 581,497.74 and 230,388.66
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Solution
The fourth proportional to 421,375.14, 581,497.74 and 230,388.66 is: 317,936.38
Step by Step Solution
- Step 1: Write the proportion equation
421,375.14 : 581,497.74 = 230,388.66 : x - Step 2: Convert to fraction form
421,375.14/581,497.74 = 230,388.66/x - Step 3: Cross multiply
421,375.14x = 581,497.74 × 230,388.66 - Step 4: Simplify right side
421,375.14x = 133,970,485,111.63 - Step 5: Solve for x
x = 133,970,485,111.63/421,375.14 - Step 6: Final answer
x = 317,936.38
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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.