Finding the Fourth Proportional to 221,113.92, 305,137.32 and 125,620.80
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Solution
The fourth proportional to 221,113.92, 305,137.32 and 125,620.80 is: 173,356.77
Step by Step Solution
- Step 1: Write the proportion equation
221,113.92 : 305,137.32 = 125,620.80 : x - Step 2: Convert to fraction form
221,113.92/305,137.32 = 125,620.80/x - Step 3: Cross multiply
221,113.92x = 305,137.32 × 125,620.80 - Step 4: Simplify right side
221,113.92x = 38,331,594,248.26 - Step 5: Solve for x
x = 38,331,594,248.26/221,113.92 - Step 6: Final answer
x = 173,356.77
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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.