Finding the Fourth Proportional to 286,884.55, 430,321.96 and 99,891.19
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Solution
The fourth proportional to 286,884.55, 430,321.96 and 99,891.19 is: 149,835.09
Step by Step Solution
- Step 1: Write the proportion equation
286,884.55 : 430,321.96 = 99,891.19 : x - Step 2: Convert to fraction form
286,884.55/430,321.96 = 99,891.19/x - Step 3: Cross multiply
286,884.55x = 430,321.96 × 99,891.19 - Step 4: Simplify right side
286,884.55x = 42,985,372,667.53 - Step 5: Solve for x
x = 42,985,372,667.53/286,884.55 - Step 6: Final answer
x = 149,835.09
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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.