Finding the Fourth Proportional to 221,605.80, 332,408.70 and 221,605.80
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Solution
The fourth proportional to 221,605.80, 332,408.70 and 221,605.80 is: 332,408.70
Step by Step Solution
- Step 1: Write the proportion equation
221,605.80 : 332,408.70 = 221,605.80 : x - Step 2: Convert to fraction form
221,605.80/332,408.70 = 221,605.80/x - Step 3: Cross multiply
221,605.80x = 332,408.70 × 221,605.80 - Step 4: Simplify right side
221,605.80x = 73,663,695,890.46 - Step 5: Solve for x
x = 73,663,695,890.46/221,605.80 - Step 6: Final answer
x = 332,408.70
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1.5x scale
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.