Finding the Fourth Proportional to 422,412.96, 633,865.68 and 156,358.56
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Solution
The fourth proportional to 422,412.96, 633,865.68 and 156,358.56 is: 234,628.99
Step by Step Solution
- Step 1: Write the proportion equation
422,412.96 : 633,865.68 = 156,358.56 : x - Step 2: Convert to fraction form
422,412.96/633,865.68 = 156,358.56/x - Step 3: Cross multiply
422,412.96x = 633,865.68 × 156,358.56 - Step 4: Simplify right side
422,412.96x = 99,110,324,958.22 - Step 5: Solve for x
x = 99,110,324,958.22/422,412.96 - Step 6: Final answer
x = 234,628.99
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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.