Finding the Fourth Proportional to 221,648.36, 305,875.94 and 121,046.44
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Solution
The fourth proportional to 221,648.36, 305,875.94 and 121,046.44 is: 167,044.74
Step by Step Solution
- Step 1: Write the proportion equation
221,648.36 : 305,875.94 = 121,046.44 : x - Step 2: Convert to fraction form
221,648.36/305,875.94 = 121,046.44/x - Step 3: Cross multiply
221,648.36x = 305,875.94 × 121,046.44 - Step 4: Simplify right side
221,648.36x = 37,025,193,618.65 - Step 5: Solve for x
x = 37,025,193,618.65/221,648.36 - Step 6: Final answer
x = 167,044.74
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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.