Finding the Fourth Proportional to 187,140.48, 280,711.94 and 74,830.14
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Solution
The fourth proportional to 187,140.48, 280,711.94 and 74,830.14 is: 112,245.70
Step by Step Solution
- Step 1: Write the proportion equation
187,140.48 : 280,711.94 = 74,830.14 : x - Step 2: Convert to fraction form
187,140.48/280,711.94 = 74,830.14/x - Step 3: Cross multiply
187,140.48x = 280,711.94 × 74,830.14 - Step 4: Simplify right side
187,140.48x = 21,005,713,769.87 - Step 5: Solve for x
x = 21,005,713,769.87/187,140.48 - Step 6: Final answer
x = 112,245.70
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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.