Finding the Fourth Proportional to 195,432.40, 293,245.80 and 77,107.60
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Solution
The fourth proportional to 195,432.40, 293,245.80 and 77,107.60 is: 115,699.75
Step by Step Solution
- Step 1: Write the proportion equation
195,432.40 : 293,245.80 = 77,107.60 : x - Step 2: Convert to fraction form
195,432.40/293,245.80 = 77,107.60/x - Step 3: Cross multiply
195,432.40x = 293,245.80 × 77,107.60 - Step 4: Simplify right side
195,432.40x = 22,611,479,848.08 - Step 5: Solve for x
x = 22,611,479,848.08/195,432.40 - Step 6: Final answer
x = 115,699.75
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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.