Finding the Fourth Proportional to 361,878.49, 542,660.03 and 121,947.68
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Solution
The fourth proportional to 361,878.49, 542,660.03 and 121,947.68 is: 182,868.38
Step by Step Solution
- Step 1: Write the proportion equation
361,878.49 : 542,660.03 = 121,947.68 : x - Step 2: Convert to fraction form
361,878.49/542,660.03 = 121,947.68/x - Step 3: Cross multiply
361,878.49x = 542,660.03 × 121,947.68 - Step 4: Simplify right side
361,878.49x = 66,176,131,687.23 - Step 5: Solve for x
x = 66,176,131,687.23/361,878.49 - Step 6: Final answer
x = 182,868.38
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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.