Finding the Fourth Proportional to 178,853.40, 246,763.87 and 107,207.28
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Solution
The fourth proportional to 178,853.40, 246,763.87 and 107,207.28 is: 147,913.78
Step by Step Solution
- Step 1: Write the proportion equation
178,853.40 : 246,763.87 = 107,207.28 : x - Step 2: Convert to fraction form
178,853.40/246,763.87 = 107,207.28/x - Step 3: Cross multiply
178,853.40x = 246,763.87 × 107,207.28 - Step 4: Simplify right side
178,853.40x = 26,454,883,036.96 - Step 5: Solve for x
x = 26,454,883,036.96/178,853.40 - Step 6: Final answer
x = 147,913.78
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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.