Finding the Fourth Proportional to 187,163.70, 258,315.03 and 119,209.80
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Solution
The fourth proportional to 187,163.70, 258,315.03 and 119,209.80 is: 164,528.07
Step by Step Solution
- Step 1: Write the proportion equation
187,163.70 : 258,315.03 = 119,209.80 : x - Step 2: Convert to fraction form
187,163.70/258,315.03 = 119,209.80/x - Step 3: Cross multiply
187,163.70x = 258,315.03 × 119,209.80 - Step 4: Simplify right side
187,163.70x = 30,793,683,063.29 - Step 5: Solve for x
x = 30,793,683,063.29/187,163.70 - Step 6: Final answer
x = 164,528.07
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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.