Finding the Fourth Proportional to 174,478.26, 261,506.07 and 79,578.51
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Solution
The fourth proportional to 174,478.26, 261,506.07 and 79,578.51 is: 119,271.38
Step by Step Solution
- Step 1: Write the proportion equation
174,478.26 : 261,506.07 = 79,578.51 : x - Step 2: Convert to fraction form
174,478.26/261,506.07 = 79,578.51/x - Step 3: Cross multiply
174,478.26x = 261,506.07 × 79,578.51 - Step 4: Simplify right side
174,478.26x = 20,810,263,406.56 - Step 5: Solve for x
x = 20,810,263,406.56/174,478.26 - Step 6: Final answer
x = 119,271.38
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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.