Finding the Fourth Proportional to 272,208.20, 408,312.30 and 197,169.80
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Solution
The fourth proportional to 272,208.20, 408,312.30 and 197,169.80 is: 295,754.70
Step by Step Solution
- Step 1: Write the proportion equation
272,208.20 : 408,312.30 = 197,169.80 : x - Step 2: Convert to fraction form
272,208.20/408,312.30 = 197,169.80/x - Step 3: Cross multiply
272,208.20x = 408,312.30 × 197,169.80 - Step 4: Simplify right side
272,208.20x = 80,506,854,528.54 - Step 5: Solve for x
x = 80,506,854,528.54/272,208.20 - Step 6: Final answer
x = 295,754.70
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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.