Finding the Fourth Proportional to 178,678.49, 246,574.60 and 98,105.31
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Solution
The fourth proportional to 178,678.49, 246,574.60 and 98,105.31 is: 135,384.39
Step by Step Solution
- Step 1: Write the proportion equation
178,678.49 : 246,574.60 = 98,105.31 : x - Step 2: Convert to fraction form
178,678.49/246,574.60 = 98,105.31/x - Step 3: Cross multiply
178,678.49x = 246,574.60 × 98,105.31 - Step 4: Simplify right side
178,678.49x = 24,190,277,325.86 - Step 5: Solve for x
x = 24,190,277,325.86/178,678.49 - Step 6: Final answer
x = 135,384.39
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1.5x scale
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.