Finding the Fourth Proportional to 215,807.80, 323,711.70 and 163,319.80
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Solution
The fourth proportional to 215,807.80, 323,711.70 and 163,319.80 is: 244,979.70
Step by Step Solution
- Step 1: Write the proportion equation
215,807.80 : 323,711.70 = 163,319.80 : x - Step 2: Convert to fraction form
215,807.80/323,711.70 = 163,319.80/x - Step 3: Cross multiply
215,807.80x = 323,711.70 × 163,319.80 - Step 4: Simplify right side
215,807.80x = 52,868,530,101.66 - Step 5: Solve for x
x = 52,868,530,101.66/215,807.80 - Step 6: Final answer
x = 244,979.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.