Finding the Fourth Proportional to 221,108.40, 305,130.74 and 125,620.44
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Solution
The fourth proportional to 221,108.40, 305,130.74 and 125,620.44 is: 173,356.86
Step by Step Solution
- Step 1: Write the proportion equation
221,108.40 : 305,130.74 = 125,620.44 : x - Step 2: Convert to fraction form
221,108.40/305,130.74 = 125,620.44/x - Step 3: Cross multiply
221,108.40x = 305,130.74 × 125,620.44 - Step 4: Simplify right side
221,108.40x = 38,330,657,816.33 - Step 5: Solve for x
x = 38,330,657,816.33/221,108.40 - Step 6: Final answer
x = 173,356.86
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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.