Finding the Fourth Proportional to 212,660.06, 293,471.78 and 117,166.75
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Solution
The fourth proportional to 212,660.06, 293,471.78 and 117,166.75 is: 161,690.61
Step by Step Solution
- Step 1: Write the proportion equation
212,660.06 : 293,471.78 = 117,166.75 : x - Step 2: Convert to fraction form
212,660.06/293,471.78 = 117,166.75/x - Step 3: Cross multiply
212,660.06x = 293,471.78 × 117,166.75 - Step 4: Simplify right side
212,660.06x = 34,385,133,359.80 - Step 5: Solve for x
x = 34,385,133,359.80/212,660.06 - Step 6: Final answer
x = 161,690.61
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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.