Finding the Fourth Proportional to 242,509.20, 363,763.80 and 207,079.80
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Solution
The fourth proportional to 242,509.20, 363,763.80 and 207,079.80 is: 310,619.70
Step by Step Solution
- Step 1: Write the proportion equation
242,509.20 : 363,763.80 = 207,079.80 : x - Step 2: Convert to fraction form
242,509.20/363,763.80 = 207,079.80/x - Step 3: Cross multiply
242,509.20x = 363,763.80 × 207,079.80 - Step 4: Simplify right side
242,509.20x = 75,328,134,951.24 - Step 5: Solve for x
x = 75,328,134,951.24/242,509.20 - Step 6: Final answer
x = 310,619.70
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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.