Finding the Fourth Proportional to 328,739.25, 493,130.74 and 115,481.23
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Solution
The fourth proportional to 328,739.25, 493,130.74 and 115,481.23 is: 173,229.53
Step by Step Solution
- Step 1: Write the proportion equation
328,739.25 : 493,130.74 = 115,481.23 : x - Step 2: Convert to fraction form
328,739.25/493,130.74 = 115,481.23/x - Step 3: Cross multiply
328,739.25x = 493,130.74 × 115,481.23 - Step 4: Simplify right side
328,739.25x = 56,947,344,406.01 - Step 5: Solve for x
x = 56,947,344,406.01/328,739.25 - Step 6: Final answer
x = 173,229.53
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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.