Finding the Fourth Proportional to 421,160.58, 581,027.52 and 306,187.14
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Solution
The fourth proportional to 421,160.58, 581,027.52 and 306,187.14 is: 422,411.70
Step by Step Solution
- Step 1: Write the proportion equation
421,160.58 : 581,027.52 = 306,187.14 : x - Step 2: Convert to fraction form
421,160.58/581,027.52 = 306,187.14/x - Step 3: Cross multiply
421,160.58x = 581,027.52 × 306,187.14 - Step 4: Simplify right side
421,160.58x = 177,903,154,610.09 - Step 5: Solve for x
x = 177,903,154,610.09/421,160.58 - Step 6: Final answer
x = 422,411.70
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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.