Finding the Fourth Proportional to 311,955.64, 430,497.54 and 175,989.60
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Solution
The fourth proportional to 311,955.64, 430,497.54 and 175,989.60 is: 242,864.94
Step by Step Solution
- Step 1: Write the proportion equation
311,955.64 : 430,497.54 = 175,989.60 : x - Step 2: Convert to fraction form
311,955.64/430,497.54 = 175,989.60/x - Step 3: Cross multiply
311,955.64x = 430,497.54 × 175,989.60 - Step 4: Simplify right side
311,955.64x = 75,763,088,827.10 - Step 5: Solve for x
x = 75,763,088,827.10/311,955.64 - Step 6: Final answer
x = 242,864.94
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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.