Finding the Fourth Proportional to 178,989.12, 246,950.28 and 117,717.84
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Solution
The fourth proportional to 178,989.12, 246,950.28 and 117,717.84 is: 162,414.64
Step by Step Solution
- Step 1: Write the proportion equation
178,989.12 : 246,950.28 = 117,717.84 : x - Step 2: Convert to fraction form
178,989.12/246,950.28 = 117,717.84/x - Step 3: Cross multiply
178,989.12x = 246,950.28 × 117,717.84 - Step 4: Simplify right side
178,989.12x = 29,070,453,549.00 - Step 5: Solve for x
x = 29,070,453,549.00/178,989.12 - Step 6: Final answer
x = 162,414.64
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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.