Finding the Fourth Proportional to 305,664.48, 458,511.30 and 128,177.28
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Solution
The fourth proportional to 305,664.48, 458,511.30 and 128,177.28 is: 192,272.03
Step by Step Solution
- Step 1: Write the proportion equation
305,664.48 : 458,511.30 = 128,177.28 : x - Step 2: Convert to fraction form
305,664.48/458,511.30 = 128,177.28/x - Step 3: Cross multiply
305,664.48x = 458,511.30 × 128,177.28 - Step 4: Simplify right side
305,664.48x = 58,770,731,283.26 - Step 5: Solve for x
x = 58,770,731,283.26/305,664.48 - Step 6: Final answer
x = 192,272.03
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.