Finding the Fourth Proportional to 311,299.08, 429,199.74 and 203,698.68
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Solution
The fourth proportional to 311,299.08, 429,199.74 and 203,698.68 is: 280,847.02
Step by Step Solution
- Step 1: Write the proportion equation
311,299.08 : 429,199.74 = 203,698.68 : x - Step 2: Convert to fraction form
311,299.08/429,199.74 = 203,698.68/x - Step 3: Cross multiply
311,299.08x = 429,199.74 × 203,698.68 - Step 4: Simplify right side
311,299.08x = 87,427,420,494.34 - Step 5: Solve for x
x = 87,427,420,494.34/311,299.08 - Step 6: Final answer
x = 280,847.02
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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.