Finding the Fourth Proportional to 178,677.78, 246,578.40 and 98,108.70
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Solution
The fourth proportional to 178,677.78, 246,578.40 and 98,108.70 is: 135,391.69
Step by Step Solution
- Step 1: Write the proportion equation
178,677.78 : 246,578.40 = 98,108.70 : x - Step 2: Convert to fraction form
178,677.78/246,578.40 = 98,108.70/x - Step 3: Cross multiply
178,677.78x = 246,578.40 × 98,108.70 - Step 4: Simplify right side
178,677.78x = 24,191,486,272.08 - Step 5: Solve for x
x = 24,191,486,272.08/178,677.78 - Step 6: Final answer
x = 135,391.69
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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.