Finding the Fourth Proportional to 229,711.08, 316,979.96 and 212,783.70
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Solution
The fourth proportional to 229,711.08, 316,979.96 and 212,783.70 is: 293,621.74
Step by Step Solution
- Step 1: Write the proportion equation
229,711.08 : 316,979.96 = 212,783.70 : x - Step 2: Convert to fraction form
229,711.08/316,979.96 = 212,783.70/x - Step 3: Cross multiply
229,711.08x = 316,979.96 × 212,783.70 - Step 4: Simplify right side
229,711.08x = 67,448,167,650.73 - Step 5: Solve for x
x = 67,448,167,650.73/229,711.08 - Step 6: Final answer
x = 293,621.74
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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.