Finding the Fourth Proportional to 190,263.14, 285,370.05 and 71,919.08
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Solution
The fourth proportional to 190,263.14, 285,370.05 and 71,919.08 is: 107,869.30
Step by Step Solution
- Step 1: Write the proportion equation
190,263.14 : 285,370.05 = 71,919.08 : x - Step 2: Convert to fraction form
190,263.14/285,370.05 = 71,919.08/x - Step 3: Cross multiply
190,263.14x = 285,370.05 × 71,919.08 - Step 4: Simplify right side
190,263.14x = 20,523,551,455.55 - Step 5: Solve for x
x = 20,523,551,455.55/190,263.14 - Step 6: Final answer
x = 107,869.30
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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.