Finding the Fourth Proportional to 225,464.05, 311,129.30 and 123,489.95
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Solution
The fourth proportional to 225,464.05, 311,129.30 and 123,489.95 is: 170,410.06
Step by Step Solution
- Step 1: Write the proportion equation
225,464.05 : 311,129.30 = 123,489.95 : x - Step 2: Convert to fraction form
225,464.05/311,129.30 = 123,489.95/x - Step 3: Cross multiply
225,464.05x = 311,129.30 × 123,489.95 - Step 4: Simplify right side
225,464.05x = 38,421,341,083.09 - Step 5: Solve for x
x = 38,421,341,083.09/225,464.05 - Step 6: Final answer
x = 170,410.06
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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.