Finding the Fourth Proportional to 199,438.24, 299,069.68 and 74,691.76
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Solution
The fourth proportional to 199,438.24, 299,069.68 and 74,691.76 is: 112,004.80
Step by Step Solution
- Step 1: Write the proportion equation
199,438.24 : 299,069.68 = 74,691.76 : x - Step 2: Convert to fraction form
199,438.24/299,069.68 = 74,691.76/x - Step 3: Cross multiply
199,438.24x = 299,069.68 × 74,691.76 - Step 4: Simplify right side
199,438.24x = 22,338,040,761.84 - Step 5: Solve for x
x = 22,338,040,761.84/199,438.24 - Step 6: Final answer
x = 112,004.80
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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.