Finding the Fourth Proportional to 221,563.40, 332,345.10 and 133,089.80
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Solution
The fourth proportional to 221,563.40, 332,345.10 and 133,089.80 is: 199,634.70
Step by Step Solution
- Step 1: Write the proportion equation
221,563.40 : 332,345.10 = 133,089.80 : x - Step 2: Convert to fraction form
221,563.40/332,345.10 = 133,089.80/x - Step 3: Cross multiply
221,563.40x = 332,345.10 × 133,089.80 - Step 4: Simplify right side
221,563.40x = 44,231,742,889.98 - Step 5: Solve for x
x = 44,231,742,889.98/221,563.40 - Step 6: Final answer
x = 199,634.70
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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.