Finding the Fourth Proportional to 209,829.20, 289,393.80 and 192,336.08
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Solution
The fourth proportional to 209,829.20, 289,393.80 and 192,336.08 is: 265,267.51
Step by Step Solution
- Step 1: Write the proportion equation
209,829.20 : 289,393.80 = 192,336.08 : x - Step 2: Convert to fraction form
209,829.20/289,393.80 = 192,336.08/x - Step 3: Cross multiply
209,829.20x = 289,393.80 × 192,336.08 - Step 4: Simplify right side
209,829.20x = 55,660,869,068.30 - Step 5: Solve for x
x = 55,660,869,068.30/209,829.20 - Step 6: Final answer
x = 265,267.51
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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.