Finding the Fourth Proportional to 221,104.72, 305,125.52 and 125,616.65
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Solution
The fourth proportional to 221,104.72, 305,125.52 and 125,616.65 is: 173,351.55
Step by Step Solution
- Step 1: Write the proportion equation
221,104.72 : 305,125.52 = 125,616.65 : x - Step 2: Convert to fraction form
221,104.72/305,125.52 = 125,616.65/x - Step 3: Cross multiply
221,104.72x = 305,125.52 × 125,616.65 - Step 4: Simplify right side
221,104.72x = 38,328,845,651.91 - Step 5: Solve for x
x = 38,328,845,651.91/221,104.72 - Step 6: Final answer
x = 173,351.55
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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.