Finding the Fourth Proportional to 178,981.05, 246,990.42 and 98,407.80
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Solution
The fourth proportional to 178,981.05, 246,990.42 and 98,407.80 is: 135,800.88
Step by Step Solution
- Step 1: Write the proportion equation
178,981.05 : 246,990.42 = 98,407.80 : x - Step 2: Convert to fraction form
178,981.05/246,990.42 = 98,407.80/x - Step 3: Cross multiply
178,981.05x = 246,990.42 × 98,407.80 - Step 4: Simplify right side
178,981.05x = 24,305,783,853.28 - Step 5: Solve for x
x = 24,305,783,853.28/178,981.05 - Step 6: Final answer
x = 135,800.88
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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.