Finding the Fourth Proportional to 221,694.03, 305,904.20 and 124,884.05
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Solution
The fourth proportional to 221,694.03, 305,904.20 and 124,884.05 is: 172,321.07
Step by Step Solution
- Step 1: Write the proportion equation
221,694.03 : 305,904.20 = 124,884.05 : x - Step 2: Convert to fraction form
221,694.03/305,904.20 = 124,884.05/x - Step 3: Cross multiply
221,694.03x = 305,904.20 × 124,884.05 - Step 4: Simplify right side
221,694.03x = 38,202,553,254.07 - Step 5: Solve for x
x = 38,202,553,254.07/221,694.03 - Step 6: Final answer
x = 172,321.07
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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.