Finding the Fourth Proportional to 199,433.36, 299,062.49 and 74,686.88
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Solution
The fourth proportional to 199,433.36, 299,062.49 and 74,686.88 is: 111,997.53
Step by Step Solution
- Step 1: Write the proportion equation
199,433.36 : 299,062.49 = 74,686.88 : x - Step 2: Convert to fraction form
199,433.36/299,062.49 = 74,686.88/x - Step 3: Cross multiply
199,433.36x = 299,062.49 × 74,686.88 - Step 4: Simplify right side
199,433.36x = 22,336,042,434.38 - Step 5: Solve for x
x = 22,336,042,434.38/199,433.36 - Step 6: Final answer
x = 111,997.53
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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.