Finding the Fourth Proportional to 286,765.44, 430,147.20 and 73,533.12
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Solution
The fourth proportional to 286,765.44, 430,147.20 and 73,533.12 is: 110,299.43
Step by Step Solution
- Step 1: Write the proportion equation
286,765.44 : 430,147.20 = 73,533.12 : x - Step 2: Convert to fraction form
286,765.44/430,147.20 = 73,533.12/x - Step 3: Cross multiply
286,765.44x = 430,147.20 × 73,533.12 - Step 4: Simplify right side
286,765.44x = 31,630,065,675.26 - Step 5: Solve for x
x = 31,630,065,675.26/286,765.44 - Step 6: Final answer
x = 110,299.43
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1.5x scale
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.