Finding the Fourth Proportional to 438,674.97, 658,221.63 and 238,990.95
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Solution
The fourth proportional to 438,674.97, 658,221.63 and 238,990.95 is: 358,600.38
Step by Step Solution
- Step 1: Write the proportion equation
438,674.97 : 658,221.63 = 238,990.95 : x - Step 2: Convert to fraction form
438,674.97/658,221.63 = 238,990.95/x - Step 3: Cross multiply
438,674.97x = 658,221.63 × 238,990.95 - Step 4: Simplify right side
438,674.97x = 157,309,012,664.25 - Step 5: Solve for x
x = 157,309,012,664.25/438,674.97 - Step 6: Final answer
x = 358,600.38
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.