Finding the Fourth Proportional to 149,578.68, 206,415.28 and 82,510.68
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Solution
The fourth proportional to 149,578.68, 206,415.28 and 82,510.68 is: 113,862.92
Step by Step Solution
- Step 1: Write the proportion equation
149,578.68 : 206,415.28 = 82,510.68 : x - Step 2: Convert to fraction form
149,578.68/206,415.28 = 82,510.68/x - Step 3: Cross multiply
149,578.68x = 206,415.28 × 82,510.68 - Step 4: Simplify right side
149,578.68x = 17,031,465,115.19 - Step 5: Solve for x
x = 17,031,465,115.19/149,578.68 - Step 6: Final answer
x = 113,862.92
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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.