Finding the Fourth Proportional to 242,721.36, 363,975.12 and 130,367.88
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Solution
The fourth proportional to 242,721.36, 363,975.12 and 130,367.88 is: 195,494.39
Step by Step Solution
- Step 1: Write the proportion equation
242,721.36 : 363,975.12 = 130,367.88 : x - Step 2: Convert to fraction form
242,721.36/363,975.12 = 130,367.88/x - Step 3: Cross multiply
242,721.36x = 363,975.12 × 130,367.88 - Step 4: Simplify right side
242,721.36x = 47,450,664,767.15 - Step 5: Solve for x
x = 47,450,664,767.15/242,721.36 - Step 6: Final answer
x = 195,494.39
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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.