Finding the Fourth Proportional to 221,117.95, 305,142.87 and 125,624.80
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Solution
The fourth proportional to 221,117.95, 305,142.87 and 125,624.80 is: 173,362.28
Step by Step Solution
- Step 1: Write the proportion equation
221,117.95 : 305,142.87 = 125,624.80 : x - Step 2: Convert to fraction form
221,117.95/305,142.87 = 125,624.80/x - Step 3: Cross multiply
221,117.95x = 305,142.87 × 125,624.80 - Step 4: Simplify right side
221,117.95x = 38,333,512,015.18 - Step 5: Solve for x
x = 38,333,512,015.18/221,117.95 - Step 6: Final answer
x = 173,362.28
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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.