Finding the Fourth Proportional to 218,977.57, 328,438.11 and 69,233.08
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Solution
The fourth proportional to 218,977.57, 328,438.11 and 69,233.08 is: 103,840.69
Step by Step Solution
- Step 1: Write the proportion equation
218,977.57 : 328,438.11 = 69,233.08 : x - Step 2: Convert to fraction form
218,977.57/328,438.11 = 69,233.08/x - Step 3: Cross multiply
218,977.57x = 328,438.11 × 69,233.08 - Step 4: Simplify right side
218,977.57x = 22,738,781,944.68 - Step 5: Solve for x
x = 22,738,781,944.68/218,977.57 - Step 6: Final answer
x = 103,840.69
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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.