Finding the Fourth Proportional to 221,117.24, 305,149.92 and 125,640.08
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Solution
The fourth proportional to 221,117.24, 305,149.92 and 125,640.08 is: 173,387.93
Step by Step Solution
- Step 1: Write the proportion equation
221,117.24 : 305,149.92 = 125,640.08 : x - Step 2: Convert to fraction form
221,117.24/305,149.92 = 125,640.08/x - Step 3: Cross multiply
221,117.24x = 305,149.92 × 125,640.08 - Step 4: Simplify right side
221,117.24x = 38,339,060,360.79 - Step 5: Solve for x
x = 38,339,060,360.79/221,117.24 - Step 6: Final answer
x = 173,387.93
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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.