Finding the Fourth Proportional to 242,390.16, 363,604.68 and 84,615.12
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Solution
The fourth proportional to 242,390.16, 363,604.68 and 84,615.12 is: 126,929.47
Step by Step Solution
- Step 1: Write the proportion equation
242,390.16 : 363,604.68 = 84,615.12 : x - Step 2: Convert to fraction form
242,390.16/363,604.68 = 84,615.12/x - Step 3: Cross multiply
242,390.16x = 363,604.68 × 84,615.12 - Step 4: Simplify right side
242,390.16x = 30,766,453,630.76 - Step 5: Solve for x
x = 30,766,453,630.76/242,390.16 - Step 6: Final answer
x = 126,929.47
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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.