Finding the Fourth Proportional to 221,833.36, 306,129.36 and 121,231.36
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Solution
The fourth proportional to 221,833.36, 306,129.36 and 121,231.36 is: 167,298.91
Step by Step Solution
- Step 1: Write the proportion equation
221,833.36 : 306,129.36 = 121,231.36 : x - Step 2: Convert to fraction form
221,833.36/306,129.36 = 121,231.36/x - Step 3: Cross multiply
221,833.36x = 306,129.36 × 121,231.36 - Step 4: Simplify right side
221,833.36x = 37,112,478,648.73 - Step 5: Solve for x
x = 37,112,478,648.73/221,833.36 - Step 6: Final answer
x = 167,298.91
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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.