Finding the Fourth Proportional to 187,380.71, 281,095.70 and 98,639.09
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Solution
The fourth proportional to 187,380.71, 281,095.70 and 98,639.09 is: 147,971.60
Step by Step Solution
- Step 1: Write the proportion equation
187,380.71 : 281,095.70 = 98,639.09 : x - Step 2: Convert to fraction form
187,380.71/281,095.70 = 98,639.09/x - Step 3: Cross multiply
187,380.71x = 281,095.70 × 98,639.09 - Step 4: Simplify right side
187,380.71x = 27,727,023,576.24 - Step 5: Solve for x
x = 27,727,023,576.24/187,380.71 - Step 6: Final answer
x = 147,971.60
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1.5x scale
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.