Finding the Fourth Proportional to 421,372.63, 581,490.26 and 230,383.99
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Solution
The fourth proportional to 421,372.63, 581,490.26 and 230,383.99 is: 317,927.73
Step by Step Solution
- Step 1: Write the proportion equation
421,372.63 : 581,490.26 = 230,383.99 : x - Step 2: Convert to fraction form
421,372.63/581,490.26 = 230,383.99/x - Step 3: Cross multiply
421,372.63x = 581,490.26 × 230,383.99 - Step 4: Simplify right side
421,372.63x = 133,966,045,093.02 - Step 5: Solve for x
x = 133,966,045,093.02/421,372.63 - Step 6: Final answer
x = 317,927.73
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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.