Finding the Fourth Proportional to 221,671.58, 305,908.80 and 126,184.46
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Solution
The fourth proportional to 221,671.58, 305,908.80 and 126,184.46 is: 174,135.70
Step by Step Solution
- Step 1: Write the proportion equation
221,671.58 : 305,908.80 = 126,184.46 : x - Step 2: Convert to fraction form
221,671.58/305,908.80 = 126,184.46/x - Step 3: Cross multiply
221,671.58x = 305,908.80 × 126,184.46 - Step 4: Simplify right side
221,671.58x = 38,600,936,737.25 - Step 5: Solve for x
x = 38,600,936,737.25/221,671.58 - Step 6: Final answer
x = 174,135.70
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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.