Finding the Fourth Proportional to 221,040.88, 305,038.84 and 120,438.88
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Solution
The fourth proportional to 221,040.88, 305,038.84 and 120,438.88 is: 166,206.98
Step by Step Solution
- Step 1: Write the proportion equation
221,040.88 : 305,038.84 = 120,438.88 : x - Step 2: Convert to fraction form
221,040.88/305,038.84 = 120,438.88/x - Step 3: Cross multiply
221,040.88x = 305,038.84 × 120,438.88 - Step 4: Simplify right side
221,040.88x = 36,738,536,246.10 - Step 5: Solve for x
x = 36,738,536,246.10/221,040.88 - Step 6: Final answer
x = 166,206.98
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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.