Finding the Fourth Proportional to 286,672.08, 430,011.96 and 99,687.12
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Solution
The fourth proportional to 286,672.08, 430,011.96 and 99,687.12 is: 149,532.02
Step by Step Solution
- Step 1: Write the proportion equation
286,672.08 : 430,011.96 = 99,687.12 : x - Step 2: Convert to fraction form
286,672.08/430,011.96 = 99,687.12/x - Step 3: Cross multiply
286,672.08x = 430,011.96 × 99,687.12 - Step 4: Simplify right side
286,672.08x = 42,866,653,857.96 - Step 5: Solve for x
x = 42,866,653,857.96/286,672.08 - Step 6: Final answer
x = 149,532.02
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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.