Finding the Fourth Proportional to 221,400.18, 332,075.65 and 79,239.70
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Solution
The fourth proportional to 221,400.18, 332,075.65 and 79,239.70 is: 118,850.74
Step by Step Solution
- Step 1: Write the proportion equation
221,400.18 : 332,075.65 = 79,239.70 : x - Step 2: Convert to fraction form
221,400.18/332,075.65 = 79,239.70/x - Step 3: Cross multiply
221,400.18x = 332,075.65 × 79,239.70 - Step 4: Simplify right side
221,400.18x = 26,313,574,883.31 - Step 5: Solve for x
x = 26,313,574,883.31/221,400.18 - Step 6: Final answer
x = 118,850.74
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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.