Finding the Fourth Proportional to 199,930.12, 299,747.02 and 121,025.68
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Solution
The fourth proportional to 199,930.12, 299,747.02 and 121,025.68 is: 181,448.83
Step by Step Solution
- Step 1: Write the proportion equation
199,930.12 : 299,747.02 = 121,025.68 : x - Step 2: Convert to fraction form
199,930.12/299,747.02 = 121,025.68/x - Step 3: Cross multiply
199,930.12x = 299,747.02 × 121,025.68 - Step 4: Simplify right side
199,930.12x = 36,277,086,923.47 - Step 5: Solve for x
x = 36,277,086,923.47/199,930.12 - Step 6: Final answer
x = 181,448.83
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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.