Finding the Fourth Proportional to 421,628.22, 632,486.70 and 137,340.99
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Solution
The fourth proportional to 421,628.22, 632,486.70 and 137,340.99 is: 206,025.94
Step by Step Solution
- Step 1: Write the proportion equation
421,628.22 : 632,486.70 = 137,340.99 : x - Step 2: Convert to fraction form
421,628.22/632,486.70 = 137,340.99/x - Step 3: Cross multiply
421,628.22x = 632,486.70 × 137,340.99 - Step 4: Simplify right side
421,628.22x = 86,866,349,539.83 - Step 5: Solve for x
x = 86,866,349,539.83/421,628.22 - Step 6: Final answer
x = 206,025.94
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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.