Finding the Fourth Proportional to 286,865.01, 430,355.84 and 99,891.09
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Solution
The fourth proportional to 286,865.01, 430,355.84 and 99,891.09 is: 149,856.94
Step by Step Solution
- Step 1: Write the proportion equation
286,865.01 : 430,355.84 = 99,891.09 : x - Step 2: Convert to fraction form
286,865.01/430,355.84 = 99,891.09/x - Step 3: Cross multiply
286,865.01x = 430,355.84 × 99,891.09 - Step 4: Simplify right side
286,865.01x = 42,988,713,446.01 - Step 5: Solve for x
x = 42,988,713,446.01/286,865.01 - Step 6: Final answer
x = 149,856.94
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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.