Finding the Fourth Proportional to 221,689.60, 332,534.40 and 133,043.20
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Solution
The fourth proportional to 221,689.60, 332,534.40 and 133,043.20 is: 199,564.80
Step by Step Solution
- Step 1: Write the proportion equation
221,689.60 : 332,534.40 = 133,043.20 : x - Step 2: Convert to fraction form
221,689.60/332,534.40 = 133,043.20/x - Step 3: Cross multiply
221,689.60x = 332,534.40 × 133,043.20 - Step 4: Simplify right side
221,689.60x = 44,241,440,686.08 - Step 5: Solve for x
x = 44,241,440,686.08/221,689.60 - Step 6: Final answer
x = 199,564.80
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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.