Finding the Fourth Proportional to 221,207.23, 305,291.93 and 125,728.28
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Solution
The fourth proportional to 221,207.23, 305,291.93 and 125,728.28 is: 173,519.77
Step by Step Solution
- Step 1: Write the proportion equation
221,207.23 : 305,291.93 = 125,728.28 : x - Step 2: Convert to fraction form
221,207.23/305,291.93 = 125,728.28/x - Step 3: Cross multiply
221,207.23x = 305,291.93 × 125,728.28 - Step 4: Simplify right side
221,207.23x = 38,383,827,101.68 - Step 5: Solve for x
x = 38,383,827,101.68/221,207.23 - Step 6: Final answer
x = 173,519.77
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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.