Finding the Fourth Proportional to 221,118.80, 331,483.80 and 132,407.60
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Solution
The fourth proportional to 221,118.80, 331,483.80 and 132,407.60 is: 198,494.99
Step by Step Solution
- Step 1: Write the proportion equation
221,118.80 : 331,483.80 = 132,407.60 : x - Step 2: Convert to fraction form
221,118.80/331,483.80 = 132,407.60/x - Step 3: Cross multiply
221,118.80x = 331,483.80 × 132,407.60 - Step 4: Simplify right side
221,118.80x = 43,890,974,396.88 - Step 5: Solve for x
x = 43,890,974,396.88/221,118.80 - Step 6: Final answer
x = 198,494.99
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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.