Finding the Fourth Proportional to 218,745.80, 328,474.69 and 135,038.08
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Solution
The fourth proportional to 218,745.80, 328,474.69 and 135,038.08 is: 202,776.87
Step by Step Solution
- Step 1: Write the proportion equation
218,745.80 : 328,474.69 = 135,038.08 : x - Step 2: Convert to fraction form
218,745.80/328,474.69 = 135,038.08/x - Step 3: Cross multiply
218,745.80x = 328,474.69 × 135,038.08 - Step 4: Simplify right side
218,745.80x = 44,356,589,691.52 - Step 5: Solve for x
x = 44,356,589,691.52/218,745.80 - Step 6: Final answer
x = 202,776.87
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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.