Finding the Fourth Proportional to 187,072.28, 257,825.94 and 141,641.48
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Solution
The fourth proportional to 187,072.28, 257,825.94 and 141,641.48 is: 195,212.50
Step by Step Solution
- Step 1: Write the proportion equation
187,072.28 : 257,825.94 = 141,641.48 : x - Step 2: Convert to fraction form
187,072.28/257,825.94 = 141,641.48/x - Step 3: Cross multiply
187,072.28x = 257,825.94 × 141,641.48 - Step 4: Simplify right side
187,072.28x = 36,518,847,723.99 - Step 5: Solve for x
x = 36,518,847,723.99/187,072.28 - Step 6: Final answer
x = 195,212.50
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.