Finding the Fourth Proportional to 393,293.05, 542,436.07 and 269,187.58
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Solution
The fourth proportional to 393,293.05, 542,436.07 and 269,187.58 is: 371,267.82
Step by Step Solution
- Step 1: Write the proportion equation
393,293.05 : 542,436.07 = 269,187.58 : x - Step 2: Convert to fraction form
393,293.05/542,436.07 = 269,187.58/x - Step 3: Cross multiply
393,293.05x = 542,436.07 × 269,187.58 - Step 4: Simplify right side
393,293.05x = 146,017,052,993.09 - Step 5: Solve for x
x = 146,017,052,993.09/393,293.05 - Step 6: Final answer
x = 371,267.82
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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.