Finding the Fourth Proportional to 252,303.61, 378,390.87 and 74,769.19
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Solution
The fourth proportional to 252,303.61, 378,390.87 and 74,769.19 is: 112,134.66
Step by Step Solution
- Step 1: Write the proportion equation
252,303.61 : 378,390.87 = 74,769.19 : x - Step 2: Convert to fraction form
252,303.61/378,390.87 = 74,769.19/x - Step 3: Cross multiply
252,303.61x = 378,390.87 × 74,769.19 - Step 4: Simplify right side
252,303.61x = 28,291,978,853.30 - Step 5: Solve for x
x = 28,291,978,853.30/252,303.61 - Step 6: Final answer
x = 112,134.66
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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.