Finding the Fourth Proportional to 221,114.80, 331,477.80 and 132,403.60
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Solution
The fourth proportional to 221,114.80, 331,477.80 and 132,403.60 is: 198,488.99
Step by Step Solution
- Step 1: Write the proportion equation
221,114.80 : 331,477.80 = 132,403.60 : x - Step 2: Convert to fraction form
221,114.80/331,477.80 = 132,403.60/x - Step 3: Cross multiply
221,114.80x = 331,477.80 × 132,403.60 - Step 4: Simplify right side
221,114.80x = 43,888,854,040.08 - Step 5: Solve for x
x = 43,888,854,040.08/221,114.80 - Step 6: Final answer
x = 198,488.99
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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.