Finding the Fourth Proportional to 221,106.92, 305,032.99 and 144,493.05
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Solution
The fourth proportional to 221,106.92, 305,032.99 and 144,493.05 is: 199,338.61
Step by Step Solution
- Step 1: Write the proportion equation
221,106.92 : 305,032.99 = 144,493.05 : x - Step 2: Convert to fraction form
221,106.92/305,032.99 = 144,493.05/x - Step 3: Cross multiply
221,106.92x = 305,032.99 × 144,493.05 - Step 4: Simplify right side
221,106.92x = 44,075,146,353.25 - Step 5: Solve for x
x = 44,075,146,353.25/221,106.92 - Step 6: Final answer
x = 199,338.61
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.