Finding the Fourth Proportional to 393,229.49, 542,485.91 and 249,912.63
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Solution
The fourth proportional to 393,229.49, 542,485.91 and 249,912.63 is: 344,770.89
Step by Step Solution
- Step 1: Write the proportion equation
393,229.49 : 542,485.91 = 249,912.63 : x - Step 2: Convert to fraction form
393,229.49/542,485.91 = 249,912.63/x - Step 3: Cross multiply
393,229.49x = 542,485.91 × 249,912.63 - Step 4: Simplify right side
393,229.49x = 135,574,081,130.83 - Step 5: Solve for x
x = 135,574,081,130.83/393,229.49 - Step 6: Final answer
x = 344,770.89
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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.