Finding the Fourth Proportional to 212,728.11, 293,564.79 and 117,234.80
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Solution
The fourth proportional to 212,728.11, 293,564.79 and 117,234.80 is: 161,784.02
Step by Step Solution
- Step 1: Write the proportion equation
212,728.11 : 293,564.79 = 117,234.80 : x - Step 2: Convert to fraction form
212,728.11/293,564.79 = 117,234.80/x - Step 3: Cross multiply
212,728.11x = 293,564.79 × 117,234.80 - Step 4: Simplify right side
212,728.11x = 34,416,009,223.47 - Step 5: Solve for x
x = 34,416,009,223.47/212,728.11 - Step 6: Final answer
x = 161,784.02
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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.