Finding the Fourth Proportional to 421,922.12, 582,250.40 and 228,329.68
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Solution
The fourth proportional to 421,922.12, 582,250.40 and 228,329.68 is: 315,093.81
Step by Step Solution
- Step 1: Write the proportion equation
421,922.12 : 582,250.40 = 228,329.68 : x - Step 2: Convert to fraction form
421,922.12/582,250.40 = 228,329.68/x - Step 3: Cross multiply
421,922.12x = 582,250.40 × 228,329.68 - Step 4: Simplify right side
421,922.12x = 132,945,047,511.87 - Step 5: Solve for x
x = 132,945,047,511.87/421,922.12 - Step 6: Final answer
x = 315,093.81
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.